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Finding the Fourth Proportional to 377,422.68, 520,851.24 and 207,657.12

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Solution

The fourth proportional to 377,422.68, 520,851.24 and 207,657.12 is: 286,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,422.68 : 520,851.24 = 207,657.12 : x
  2. Step 2: Convert to fraction form
    377,422.68/520,851.24 = 207,657.12/x
  3. Step 3: Cross multiply
    377,422.68x = 520,851.24 × 207,657.12
  4. Step 4: Simplify right side
    377,422.68x = 108,158,468,446.83
  5. Step 5: Solve for x
    x = 108,158,468,446.83/377,422.68
  6. Step 6: Final answer
    x = 286,571.20

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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.