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Finding the Fourth Proportional to 425,710.20, 587,484.12 and 234,730.40

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Solution

The fourth proportional to 425,710.20, 587,484.12 and 234,730.40 is: 323,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,710.20 : 587,484.12 = 234,730.40 : x
  2. Step 2: Convert to fraction form
    425,710.20/587,484.12 = 234,730.40/x
  3. Step 3: Cross multiply
    425,710.20x = 587,484.12 × 234,730.40
  4. Step 4: Simplify right side
    425,710.20x = 137,900,382,481.25
  5. Step 5: Solve for x
    x = 137,900,382,481.25/425,710.20
  6. Step 6: Final answer
    x = 323,930.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.