Home / 208,879.07-288,252.87-113,385.76

Finding the Fourth Proportional to 208,879.07, 288,252.87 and 113,385.76

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Solution

The fourth proportional to 208,879.07, 288,252.87 and 113,385.76 is: 156,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,879.07 : 288,252.87 = 113,385.76 : x
  2. Step 2: Convert to fraction form
    208,879.07/288,252.87 = 113,385.76/x
  3. Step 3: Cross multiply
    208,879.07x = 288,252.87 × 113,385.76
  4. Step 4: Simplify right side
    208,879.07x = 32,683,770,737.13
  5. Step 5: Solve for x
    x = 32,683,770,737.13/208,879.07
  6. Step 6: Final answer
    x = 156,472.21

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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.