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Finding the Fourth Proportional to 425,124.80, 586,645.32 and 234,138.20

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Solution

The fourth proportional to 425,124.80, 586,645.32 and 234,138.20 is: 323,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,124.80 : 586,645.32 = 234,138.20 : x
  2. Step 2: Convert to fraction form
    425,124.80/586,645.32 = 234,138.20/x
  3. Step 3: Cross multiply
    425,124.80x = 586,645.32 × 234,138.20
  4. Step 4: Simplify right side
    425,124.80x = 137,356,079,263.22
  5. Step 5: Solve for x
    x = 137,356,079,263.22/425,124.80
  6. Step 6: Final answer
    x = 323,095.90

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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.