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Finding the Fourth Proportional to 272,743.80, 409,115.70 and 249,124.20

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Solution

The fourth proportional to 272,743.80, 409,115.70 and 249,124.20 is: 373,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,743.80 : 409,115.70 = 249,124.20 : x
  2. Step 2: Convert to fraction form
    272,743.80/409,115.70 = 249,124.20/x
  3. Step 3: Cross multiply
    272,743.80x = 409,115.70 × 249,124.20
  4. Step 4: Simplify right side
    272,743.80x = 101,920,621,469.94
  5. Step 5: Solve for x
    x = 101,920,621,469.94/272,743.80
  6. Step 6: Final answer
    x = 373,686.30

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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.