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Finding the Fourth Proportional to 625,157.88, 937,736.78 and 288,098.81

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Solution

The fourth proportional to 625,157.88, 937,736.78 and 288,098.81 is: 432,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,157.88 : 937,736.78 = 288,098.81 : x
  2. Step 2: Convert to fraction form
    625,157.88/937,736.78 = 288,098.81/x
  3. Step 3: Cross multiply
    625,157.88x = 937,736.78 × 288,098.81
  4. Step 4: Simplify right side
    625,157.88x = 270,160,844,282.05
  5. Step 5: Solve for x
    x = 270,160,844,282.05/625,157.88
  6. Step 6: Final answer
    x = 432,148.19

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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.