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Finding the Fourth Proportional to 178,178.39, 266,983.27 and 130,572.86

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Solution

The fourth proportional to 178,178.39, 266,983.27 and 130,572.86 is: 195,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,178.39 : 266,983.27 = 130,572.86 : x
  2. Step 2: Convert to fraction form
    178,178.39/266,983.27 = 130,572.86/x
  3. Step 3: Cross multiply
    178,178.39x = 266,983.27 × 130,572.86
  4. Step 4: Simplify right side
    178,178.39x = 34,860,769,136.05
  5. Step 5: Solve for x
    x = 34,860,769,136.05/178,178.39
  6. Step 6: Final answer
    x = 195,650.94

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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.