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Finding the Fourth Proportional to 162,331.80, 243,060.30 and 127,339.80

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Solution

The fourth proportional to 162,331.80, 243,060.30 and 127,339.80 is: 190,666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,331.80 : 243,060.30 = 127,339.80 : x
  2. Step 2: Convert to fraction form
    162,331.80/243,060.30 = 127,339.80/x
  3. Step 3: Cross multiply
    162,331.80x = 243,060.30 × 127,339.80
  4. Step 4: Simplify right side
    162,331.80x = 30,951,249,989.94
  5. Step 5: Solve for x
    x = 30,951,249,989.94/162,331.80
  6. Step 6: Final answer
    x = 190,666.59

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1.5x scale

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.