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Finding the Fourth Proportional to 208,550.76, 287,800.07 and 113,057.16

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Solution

The fourth proportional to 208,550.76, 287,800.07 and 113,057.16 is: 156,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,550.76 : 287,800.07 = 113,057.16 : x
  2. Step 2: Convert to fraction form
    208,550.76/287,800.07 = 113,057.16/x
  3. Step 3: Cross multiply
    208,550.76x = 287,800.07 × 113,057.16
  4. Step 4: Simplify right side
    208,550.76x = 32,537,857,996.72
  5. Step 5: Solve for x
    x = 32,537,857,996.72/208,550.76
  6. Step 6: Final answer
    x = 156,018.89

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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.