Home / 385,147.92-531,577.60-258,045.12

Finding the Fourth Proportional to 385,147.92, 531,577.60 and 258,045.12

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Solution

The fourth proportional to 385,147.92, 531,577.60 and 258,045.12 is: 356,151.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,147.92 : 531,577.60 = 258,045.12 : x
  2. Step 2: Convert to fraction form
    385,147.92/531,577.60 = 258,045.12/x
  3. Step 3: Cross multiply
    385,147.92x = 531,577.60 × 258,045.12
  4. Step 4: Simplify right side
    385,147.92x = 137,171,005,581.31
  5. Step 5: Solve for x
    x = 137,171,005,581.31/385,147.92
  6. Step 6: Final answer
    x = 356,151.49

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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.