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Finding the Fourth Proportional to 272,937.50, 409,479.96 and 83,392.70

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Solution

The fourth proportional to 272,937.50, 409,479.96 and 83,392.70 is: 125,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,937.50 : 409,479.96 = 83,392.70 : x
  2. Step 2: Convert to fraction form
    272,937.50/409,479.96 = 83,392.70/x
  3. Step 3: Cross multiply
    272,937.50x = 409,479.96 × 83,392.70
  4. Step 4: Simplify right side
    272,937.50x = 34,147,639,026.62
  5. Step 5: Solve for x
    x = 34,147,639,026.62/272,937.50
  6. Step 6: Final answer
    x = 125,111.57

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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.