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Finding the Fourth Proportional to 352,706.09, 486,402.86 and 272,005.79

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Solution

The fourth proportional to 352,706.09, 486,402.86 and 272,005.79 is: 375,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,706.09 : 486,402.86 = 272,005.79 : x
  2. Step 2: Convert to fraction form
    352,706.09/486,402.86 = 272,005.79/x
  3. Step 3: Cross multiply
    352,706.09x = 486,402.86 × 272,005.79
  4. Step 4: Simplify right side
    352,706.09x = 132,304,392,832.53
  5. Step 5: Solve for x
    x = 132,304,392,832.53/352,706.09
  6. Step 6: Final answer
    x = 375,112.30

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1.5x scale

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.