Home / 397,917.92-596,818.02-145,139.24

Finding the Fourth Proportional to 397,917.92, 596,818.02 and 145,139.24

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Solution

The fourth proportional to 397,917.92, 596,818.02 and 145,139.24 is: 217,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,917.92 : 596,818.02 = 145,139.24 : x
  2. Step 2: Convert to fraction form
    397,917.92/596,818.02 = 145,139.24/x
  3. Step 3: Cross multiply
    397,917.92x = 596,818.02 × 145,139.24
  4. Step 4: Simplify right side
    397,917.92x = 86,621,713,841.10
  5. Step 5: Solve for x
    x = 86,621,713,841.10/397,917.92
  6. Step 6: Final answer
    x = 217,687.39

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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.