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Finding the Fourth Proportional to 172,655.96, 238,248.06 and 127,358.42

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Solution

The fourth proportional to 172,655.96, 238,248.06 and 127,358.42 is: 175,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,655.96 : 238,248.06 = 127,358.42 : x
  2. Step 2: Convert to fraction form
    172,655.96/238,248.06 = 127,358.42/x
  3. Step 3: Cross multiply
    172,655.96x = 238,248.06 × 127,358.42
  4. Step 4: Simplify right side
    172,655.96x = 30,342,896,489.67
  5. Step 5: Solve for x
    x = 30,342,896,489.67/172,655.96
  6. Step 6: Final answer
    x = 175,741.96

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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.