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Finding the Fourth Proportional to 272,377.16, 408,398.94 and 112,403.48

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Solution

The fourth proportional to 272,377.16, 408,398.94 and 112,403.48 is: 168,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,377.16 : 408,398.94 = 112,403.48 : x
  2. Step 2: Convert to fraction form
    272,377.16/408,398.94 = 112,403.48/x
  3. Step 3: Cross multiply
    272,377.16x = 408,398.94 × 112,403.48
  4. Step 4: Simplify right side
    272,377.16x = 45,905,462,084.31
  5. Step 5: Solve for x
    x = 45,905,462,084.31/272,377.16
  6. Step 6: Final answer
    x = 168,536.39

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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.