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Finding the Fourth Proportional to 272,807.55, 409,211.33 and 253,124.55

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Solution

The fourth proportional to 272,807.55, 409,211.33 and 253,124.55 is: 379,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,807.55 : 409,211.33 = 253,124.55 : x
  2. Step 2: Convert to fraction form
    272,807.55/409,211.33 = 253,124.55/x
  3. Step 3: Cross multiply
    272,807.55x = 409,211.33 × 253,124.55
  4. Step 4: Simplify right side
    272,807.55x = 103,581,432,495.53
  5. Step 5: Solve for x
    x = 103,581,432,495.53/272,807.55
  6. Step 6: Final answer
    x = 379,686.83

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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.