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Finding the Fourth Proportional to 243,750.70, 365,842.05 and 143,785.90

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Solution

The fourth proportional to 243,750.70, 365,842.05 and 143,785.90 is: 215,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,750.70 : 365,842.05 = 143,785.90 : x
  2. Step 2: Convert to fraction form
    243,750.70/365,842.05 = 143,785.90/x
  3. Step 3: Cross multiply
    243,750.70x = 365,842.05 × 143,785.90
  4. Step 4: Simplify right side
    243,750.70x = 52,602,928,417.10
  5. Step 5: Solve for x
    x = 52,602,928,417.10/243,750.70
  6. Step 6: Final answer
    x = 215,806.27

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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.