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Finding the Fourth Proportional to 425,345.72, 586,949.62 and 253,276.31

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Solution

The fourth proportional to 425,345.72, 586,949.62 and 253,276.31 is: 349,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,345.72 : 586,949.62 = 253,276.31 : x
  2. Step 2: Convert to fraction form
    425,345.72/586,949.62 = 253,276.31/x
  3. Step 3: Cross multiply
    425,345.72x = 586,949.62 × 253,276.31
  4. Step 4: Simplify right side
    425,345.72x = 148,660,433,909.50
  5. Step 5: Solve for x
    x = 148,660,433,909.50/425,345.72
  6. Step 6: Final answer
    x = 349,504.95

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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.