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Finding the Fourth Proportional to 269,031.20, 403,546.80 and 240,000.80

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Solution

The fourth proportional to 269,031.20, 403,546.80 and 240,000.80 is: 360,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,031.20 : 403,546.80 = 240,000.80 : x
  2. Step 2: Convert to fraction form
    269,031.20/403,546.80 = 240,000.80/x
  3. Step 3: Cross multiply
    269,031.20x = 403,546.80 × 240,000.80
  4. Step 4: Simplify right side
    269,031.20x = 96,851,554,837.44
  5. Step 5: Solve for x
    x = 96,851,554,837.44/269,031.20
  6. Step 6: Final answer
    x = 360,001.20

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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.