Home / 461,301.40-691,887.30-145,790.20

Finding the Fourth Proportional to 461,301.40, 691,887.30 and 145,790.20

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Solution

The fourth proportional to 461,301.40, 691,887.30 and 145,790.20 is: 218,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,301.40 : 691,887.30 = 145,790.20 : x
  2. Step 2: Convert to fraction form
    461,301.40/691,887.30 = 145,790.20/x
  3. Step 3: Cross multiply
    461,301.40x = 691,887.30 × 145,790.20
  4. Step 4: Simplify right side
    461,301.40x = 100,870,387,844.46
  5. Step 5: Solve for x
    x = 100,870,387,844.46/461,301.40
  6. Step 6: Final answer
    x = 218,664.82

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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.