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Finding the Fourth Proportional to 272,657.30, 376,263.50 and 157,951.58

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Solution

The fourth proportional to 272,657.30, 376,263.50 and 157,951.58 is: 217,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,657.30 : 376,263.50 = 157,951.58 : x
  2. Step 2: Convert to fraction form
    272,657.30/376,263.50 = 157,951.58/x
  3. Step 3: Cross multiply
    272,657.30x = 376,263.50 × 157,951.58
  4. Step 4: Simplify right side
    272,657.30x = 59,431,413,531.57
  5. Step 5: Solve for x
    x = 59,431,413,531.57/272,657.30
  6. Step 6: Final answer
    x = 217,971.11

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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.