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Finding the Fourth Proportional to 272,275.81, 408,359.88 and 258,773.47

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Solution

The fourth proportional to 272,275.81, 408,359.88 and 258,773.47 is: 388,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,275.81 : 408,359.88 = 258,773.47 : x
  2. Step 2: Convert to fraction form
    272,275.81/408,359.88 = 258,773.47/x
  3. Step 3: Cross multiply
    272,275.81x = 408,359.88 × 258,773.47
  4. Step 4: Simplify right side
    272,275.81x = 105,672,703,156.38
  5. Step 5: Solve for x
    x = 105,672,703,156.38/272,275.81
  6. Step 6: Final answer
    x = 388,109.04

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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.