Home / 208,872.41-288,244.31-113,379.21

Finding the Fourth Proportional to 208,872.41, 288,244.31 and 113,379.21

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Solution

The fourth proportional to 208,872.41, 288,244.31 and 113,379.21 is: 156,463.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,872.41 : 288,244.31 = 113,379.21 : x
  2. Step 2: Convert to fraction form
    208,872.41/288,244.31 = 113,379.21/x
  3. Step 3: Cross multiply
    208,872.41x = 288,244.31 × 113,379.21
  4. Step 4: Simplify right side
    208,872.41x = 32,680,911,587.90
  5. Step 5: Solve for x
    x = 32,680,911,587.90/208,872.41
  6. Step 6: Final answer
    x = 156,463.52

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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.