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Finding the Fourth Proportional to 377,259.32, 520,615.14 and 207,489.80

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Solution

The fourth proportional to 377,259.32, 520,615.14 and 207,489.80 is: 286,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,259.32 : 520,615.14 = 207,489.80 : x
  2. Step 2: Convert to fraction form
    377,259.32/520,615.14 = 207,489.80/x
  3. Step 3: Cross multiply
    377,259.32x = 520,615.14 × 207,489.80
  4. Step 4: Simplify right side
    377,259.32x = 108,022,331,275.57
  5. Step 5: Solve for x
    x = 108,022,331,275.57/377,259.32
  6. Step 6: Final answer
    x = 286,334.43

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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.