Home / 208,809.28-288,158.92-113,316.80

Finding the Fourth Proportional to 208,809.28, 288,158.92 and 113,316.80

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Solution

The fourth proportional to 208,809.28, 288,158.92 and 113,316.80 is: 156,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,809.28 : 288,158.92 = 113,316.80 : x
  2. Step 2: Convert to fraction form
    208,809.28/288,158.92 = 113,316.80/x
  3. Step 3: Cross multiply
    208,809.28x = 288,158.92 × 113,316.80
  4. Step 4: Simplify right side
    208,809.28x = 32,653,246,705.86
  5. Step 5: Solve for x
    x = 32,653,246,705.86/208,809.28
  6. Step 6: Final answer
    x = 156,378.33

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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.