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Finding the Fourth Proportional to 165,000.70, 247,501.05 and 115,234.30

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Solution

The fourth proportional to 165,000.70, 247,501.05 and 115,234.30 is: 172,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,000.70 : 247,501.05 = 115,234.30 : x
  2. Step 2: Convert to fraction form
    165,000.70/247,501.05 = 115,234.30/x
  3. Step 3: Cross multiply
    165,000.70x = 247,501.05 × 115,234.30
  4. Step 4: Simplify right side
    165,000.70x = 28,520,610,246.02
  5. Step 5: Solve for x
    x = 28,520,610,246.02/165,000.70
  6. Step 6: Final answer
    x = 172,851.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.