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Finding the Fourth Proportional to 243,351.27, 365,046.08 and 85,615.11

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Solution

The fourth proportional to 243,351.27, 365,046.08 and 85,615.11 is: 128,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,351.27 : 365,046.08 = 85,615.11 : x
  2. Step 2: Convert to fraction form
    243,351.27/365,046.08 = 85,615.11/x
  3. Step 3: Cross multiply
    243,351.27x = 365,046.08 × 85,615.11
  4. Step 4: Simplify right side
    243,351.27x = 31,253,459,866.19
  5. Step 5: Solve for x
    x = 31,253,459,866.19/243,351.27
  6. Step 6: Final answer
    x = 128,429.41

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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.