Home / 208,207.69-287,326.70-112,714.38

Finding the Fourth Proportional to 208,207.69, 287,326.70 and 112,714.38

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Solution

The fourth proportional to 208,207.69, 287,326.70 and 112,714.38 is: 155,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,207.69 : 287,326.70 = 112,714.38 : x
  2. Step 2: Convert to fraction form
    208,207.69/287,326.70 = 112,714.38/x
  3. Step 3: Cross multiply
    208,207.69x = 287,326.70 × 112,714.38
  4. Step 4: Simplify right side
    208,207.69x = 32,385,850,847.95
  5. Step 5: Solve for x
    x = 32,385,850,847.95/208,207.69
  6. Step 6: Final answer
    x = 155,545.89

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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.