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Finding the Fourth Proportional to 340,076.40, 510,114.60 and 323,746.80

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Solution

The fourth proportional to 340,076.40, 510,114.60 and 323,746.80 is: 485,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,076.40 : 510,114.60 = 323,746.80 : x
  2. Step 2: Convert to fraction form
    340,076.40/510,114.60 = 323,746.80/x
  3. Step 3: Cross multiply
    340,076.40x = 510,114.60 × 323,746.80
  4. Step 4: Simplify right side
    340,076.40x = 165,147,969,383.28
  5. Step 5: Solve for x
    x = 165,147,969,383.28/340,076.40
  6. Step 6: Final answer
    x = 485,620.20

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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.