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Finding the Fourth Proportional to 272,730.84, 408,959.37 and 158,915.46

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Solution

The fourth proportional to 272,730.84, 408,959.37 and 158,915.46 is: 238,293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,730.84 : 408,959.37 = 158,915.46 : x
  2. Step 2: Convert to fraction form
    272,730.84/408,959.37 = 158,915.46/x
  3. Step 3: Cross multiply
    272,730.84x = 408,959.37 × 158,915.46
  4. Step 4: Simplify right side
    272,730.84x = 64,989,966,404.86
  5. Step 5: Solve for x
    x = 64,989,966,404.86/272,730.84
  6. Step 6: Final answer
    x = 238,293.43

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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.