Home / 318,431.08-477,724.38-131,496.04

Finding the Fourth Proportional to 318,431.08, 477,724.38 and 131,496.04

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Solution

The fourth proportional to 318,431.08, 477,724.38 and 131,496.04 is: 197,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,431.08 : 477,724.38 = 131,496.04 : x
  2. Step 2: Convert to fraction form
    318,431.08/477,724.38 = 131,496.04/x
  3. Step 3: Cross multiply
    318,431.08x = 477,724.38 × 131,496.04
  4. Step 4: Simplify right side
    318,431.08x = 62,818,864,181.46
  5. Step 5: Solve for x
    x = 62,818,864,181.46/318,431.08
  6. Step 6: Final answer
    x = 197,276.17

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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.