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Finding the Fourth Proportional to 230,488.68, 345,733.08 and 72,729.48

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Solution

The fourth proportional to 230,488.68, 345,733.08 and 72,729.48 is: 109,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,488.68 : 345,733.08 = 72,729.48 : x
  2. Step 2: Convert to fraction form
    230,488.68/345,733.08 = 72,729.48/x
  3. Step 3: Cross multiply
    230,488.68x = 345,733.08 × 72,729.48
  4. Step 4: Simplify right side
    230,488.68x = 25,144,987,127.20
  5. Step 5: Solve for x
    x = 25,144,987,127.20/230,488.68
  6. Step 6: Final answer
    x = 109,094.24

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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.