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Finding the Fourth Proportional to 178,000.40, 266,676.60 and 140,805.20

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Solution

The fourth proportional to 178,000.40, 266,676.60 and 140,805.20 is: 210,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,000.40 : 266,676.60 = 140,805.20 : x
  2. Step 2: Convert to fraction form
    178,000.40/266,676.60 = 140,805.20/x
  3. Step 3: Cross multiply
    178,000.40x = 266,676.60 × 140,805.20
  4. Step 4: Simplify right side
    178,000.40x = 37,549,451,998.32
  5. Step 5: Solve for x
    x = 37,549,451,998.32/178,000.40
  6. Step 6: Final answer
    x = 210,951.50

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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.