Home / 461,327.80-691,862.10-145,881.40

Finding the Fourth Proportional to 461,327.80, 691,862.10 and 145,881.40

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Solution

The fourth proportional to 461,327.80, 691,862.10 and 145,881.40 is: 218,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,327.80 : 691,862.10 = 145,881.40 : x
  2. Step 2: Convert to fraction form
    461,327.80/691,862.10 = 145,881.40/x
  3. Step 3: Cross multiply
    461,327.80x = 691,862.10 × 145,881.40
  4. Step 4: Simplify right side
    461,327.80x = 100,929,811,754.94
  5. Step 5: Solve for x
    x = 100,929,811,754.94/461,327.80
  6. Step 6: Final answer
    x = 218,781.12

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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.