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Finding the Fourth Proportional to 257,543.45, 386,479.20 and 150,927.20

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Solution

The fourth proportional to 257,543.45, 386,479.20 and 150,927.20 is: 226,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,543.45 : 386,479.20 = 150,927.20 : x
  2. Step 2: Convert to fraction form
    257,543.45/386,479.20 = 150,927.20/x
  3. Step 3: Cross multiply
    257,543.45x = 386,479.20 × 150,927.20
  4. Step 4: Simplify right side
    257,543.45x = 58,330,223,514.24
  5. Step 5: Solve for x
    x = 58,330,223,514.24/257,543.45
  6. Step 6: Final answer
    x = 226,486.92

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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.