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Finding the Fourth Proportional to 208,845.70, 288,207.33 and 113,352.40

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Solution

The fourth proportional to 208,845.70, 288,207.33 and 113,352.40 is: 156,426.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845.70 : 288,207.33 = 113,352.40 : x
  2. Step 2: Convert to fraction form
    208,845.70/288,207.33 = 113,352.40/x
  3. Step 3: Cross multiply
    208,845.70x = 288,207.33 × 113,352.40
  4. Step 4: Simplify right side
    208,845.70x = 32,668,992,553.09
  5. Step 5: Solve for x
    x = 32,668,992,553.09/208,845.70
  6. Step 6: Final answer
    x = 156,426.46

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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.