Home / 272,417.26-408,743.40-103,988.17

Finding the Fourth Proportional to 272,417.26, 408,743.40 and 103,988.17

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Solution

The fourth proportional to 272,417.26, 408,743.40 and 103,988.17 is: 156,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,417.26 : 408,743.40 = 103,988.17 : x
  2. Step 2: Convert to fraction form
    272,417.26/408,743.40 = 103,988.17/x
  3. Step 3: Cross multiply
    272,417.26x = 408,743.40 × 103,988.17
  4. Step 4: Simplify right side
    272,417.26x = 42,504,478,165.58
  5. Step 5: Solve for x
    x = 42,504,478,165.58/272,417.26
  6. Step 6: Final answer
    x = 156,027.11

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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.