Home / 458,451.40-687,677.10-192,123.40

Finding the Fourth Proportional to 458,451.40, 687,677.10 and 192,123.40

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Solution

The fourth proportional to 458,451.40, 687,677.10 and 192,123.40 is: 288,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,451.40 : 687,677.10 = 192,123.40 : x
  2. Step 2: Convert to fraction form
    458,451.40/687,677.10 = 192,123.40/x
  3. Step 3: Cross multiply
    458,451.40x = 687,677.10 × 192,123.40
  4. Step 4: Simplify right side
    458,451.40x = 132,118,862,554.14
  5. Step 5: Solve for x
    x = 132,118,862,554.14/458,451.40
  6. Step 6: Final answer
    x = 288,185.10

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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.