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Finding the Fourth Proportional to 545,169, 752,252.48 and 327,331.66

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Solution

The fourth proportional to 545,169, 752,252.48 and 327,331.66 is: 451,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,169 : 752,252.48 = 327,331.66 : x
  2. Step 2: Convert to fraction form
    545,169/752,252.48 = 327,331.66/x
  3. Step 3: Cross multiply
    545,169x = 752,252.48 × 327,331.66
  4. Step 4: Simplify right side
    545,169x = 246,236,053,017.52
  5. Step 5: Solve for x
    x = 246,236,053,017.52/545,169
  6. Step 6: Final answer
    x = 451,669.21

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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.