Home / 431,678.08-647,122.68-151,042.24

Finding the Fourth Proportional to 431,678.08, 647,122.68 and 151,042.24

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Solution

The fourth proportional to 431,678.08, 647,122.68 and 151,042.24 is: 226,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,678.08 : 647,122.68 = 151,042.24 : x
  2. Step 2: Convert to fraction form
    431,678.08/647,122.68 = 151,042.24/x
  3. Step 3: Cross multiply
    431,678.08x = 647,122.68 × 151,042.24
  4. Step 4: Simplify right side
    431,678.08x = 97,742,859,142.00
  5. Step 5: Solve for x
    x = 97,742,859,142.00/431,678.08
  6. Step 6: Final answer
    x = 226,425.35

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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.