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Finding the Fourth Proportional to 340,443.59, 510,665.39 and 103,784.22

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Solution

The fourth proportional to 340,443.59, 510,665.39 and 103,784.22 is: 155,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,443.59 : 510,665.39 = 103,784.22 : x
  2. Step 2: Convert to fraction form
    340,443.59/510,665.39 = 103,784.22/x
  3. Step 3: Cross multiply
    340,443.59x = 510,665.39 × 103,784.22
  4. Step 4: Simplify right side
    340,443.59x = 52,999,008,663.22
  5. Step 5: Solve for x
    x = 52,999,008,663.22/340,443.59
  6. Step 6: Final answer
    x = 155,676.33

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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.