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Finding the Fourth Proportional to 340,560.60, 510,840.90 and 103,902.90

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Solution

The fourth proportional to 340,560.60, 510,840.90 and 103,902.90 is: 155,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,560.60 : 510,840.90 = 103,902.90 : x
  2. Step 2: Convert to fraction form
    340,560.60/510,840.90 = 103,902.90/x
  3. Step 3: Cross multiply
    340,560.60x = 510,840.90 × 103,902.90
  4. Step 4: Simplify right side
    340,560.60x = 53,077,850,948.61
  5. Step 5: Solve for x
    x = 53,077,850,948.61/340,560.60
  6. Step 6: Final answer
    x = 155,854.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.