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Finding the Fourth Proportional to 243,615.83, 365,423.56 and 66,148.88

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Solution

The fourth proportional to 243,615.83, 365,423.56 and 66,148.88 is: 99,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,615.83 : 365,423.56 = 66,148.88 : x
  2. Step 2: Convert to fraction form
    243,615.83/365,423.56 = 66,148.88/x
  3. Step 3: Cross multiply
    243,615.83x = 365,423.56 × 66,148.88
  4. Step 4: Simplify right side
    243,615.83x = 24,172,357,227.12
  5. Step 5: Solve for x
    x = 24,172,357,227.12/243,615.83
  6. Step 6: Final answer
    x = 99,223.26

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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.