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Finding the Fourth Proportional to 473,279.98, 653,123.10 and 258,419.92

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Solution

The fourth proportional to 473,279.98, 653,123.10 and 258,419.92 is: 356,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,279.98 : 653,123.10 = 258,419.92 : x
  2. Step 2: Convert to fraction form
    473,279.98/653,123.10 = 258,419.92/x
  3. Step 3: Cross multiply
    473,279.98x = 653,123.10 × 258,419.92
  4. Step 4: Simplify right side
    473,279.98x = 168,780,019,252.15
  5. Step 5: Solve for x
    x = 168,780,019,252.15/473,279.98
  6. Step 6: Final answer
    x = 356,617.70

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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.