Home / 398,036.05-596,943.24-131,817.32

Finding the Fourth Proportional to 398,036.05, 596,943.24 and 131,817.32

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Solution

The fourth proportional to 398,036.05, 596,943.24 and 131,817.32 is: 197,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,036.05 : 596,943.24 = 131,817.32 : x
  2. Step 2: Convert to fraction form
    398,036.05/596,943.24 = 131,817.32/x
  3. Step 3: Cross multiply
    398,036.05x = 596,943.24 × 131,817.32
  4. Step 4: Simplify right side
    398,036.05x = 78,687,461,318.44
  5. Step 5: Solve for x
    x = 78,687,461,318.44/398,036.05
  6. Step 6: Final answer
    x = 197,689.28

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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.