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Finding the Fourth Proportional to 435,643.05, 601,116.87 and 272,280.29

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Solution

The fourth proportional to 435,643.05, 601,116.87 and 272,280.29 is: 375,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,643.05 : 601,116.87 = 272,280.29 : x
  2. Step 2: Convert to fraction form
    435,643.05/601,116.87 = 272,280.29/x
  3. Step 3: Cross multiply
    435,643.05x = 601,116.87 × 272,280.29
  4. Step 4: Simplify right side
    435,643.05x = 163,672,275,687.49
  5. Step 5: Solve for x
    x = 163,672,275,687.49/435,643.05
  6. Step 6: Final answer
    x = 375,702.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.