Home / 318,738.92-477,955.89-185,657.13

Finding the Fourth Proportional to 318,738.92, 477,955.89 and 185,657.13

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Solution

The fourth proportional to 318,738.92, 477,955.89 and 185,657.13 is: 278,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,738.92 : 477,955.89 = 185,657.13 : x
  2. Step 2: Convert to fraction form
    318,738.92/477,955.89 = 185,657.13/x
  3. Step 3: Cross multiply
    318,738.92x = 477,955.89 × 185,657.13
  4. Step 4: Simplify right side
    318,738.92x = 88,735,918,804.00
  5. Step 5: Solve for x
    x = 88,735,918,804.00/318,738.92
  6. Step 6: Final answer
    x = 278,396.88

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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.