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Finding the Fourth Proportional to 453,169, 625,373.22 and 251,965

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Solution

The fourth proportional to 453,169, 625,373.22 and 251,965 is: 347,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,169 : 625,373.22 = 251,965 : x
  2. Step 2: Convert to fraction form
    453,169/625,373.22 = 251,965/x
  3. Step 3: Cross multiply
    453,169x = 625,373.22 × 251,965
  4. Step 4: Simplify right side
    453,169x = 157,572,163,377.30
  5. Step 5: Solve for x
    x = 157,572,163,377.30/453,169
  6. Step 6: Final answer
    x = 347,711.70

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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.