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Finding the Fourth Proportional to 425,011.32, 586,517.78 and 243,730.08

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Solution

The fourth proportional to 425,011.32, 586,517.78 and 243,730.08 is: 336,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,011.32 : 586,517.78 = 243,730.08 : x
  2. Step 2: Convert to fraction form
    425,011.32/586,517.78 = 243,730.08/x
  3. Step 3: Cross multiply
    425,011.32x = 586,517.78 × 243,730.08
  4. Step 4: Simplify right side
    425,011.32x = 142,952,025,440.82
  5. Step 5: Solve for x
    x = 142,952,025,440.82/425,011.32
  6. Step 6: Final answer
    x = 336,348.75

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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.