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Finding the Fourth Proportional to 270,354.96, 372,940.20 and 157,165.20

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Solution

The fourth proportional to 270,354.96, 372,940.20 and 157,165.20 is: 216,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,354.96 : 372,940.20 = 157,165.20 : x
  2. Step 2: Convert to fraction form
    270,354.96/372,940.20 = 157,165.20/x
  3. Step 3: Cross multiply
    270,354.96x = 372,940.20 × 157,165.20
  4. Step 4: Simplify right side
    270,354.96x = 58,613,221,121.04
  5. Step 5: Solve for x
    x = 58,613,221,121.04/270,354.96
  6. Step 6: Final answer
    x = 216,800.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.