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Finding the Fourth Proportional to 209,337.57, 288,951.69 and 118,753.77

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Solution

The fourth proportional to 209,337.57, 288,951.69 and 118,753.77 is: 163,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,337.57 : 288,951.69 = 118,753.77 : x
  2. Step 2: Convert to fraction form
    209,337.57/288,951.69 = 118,753.77/x
  3. Step 3: Cross multiply
    209,337.57x = 288,951.69 × 118,753.77
  4. Step 4: Simplify right side
    209,337.57x = 34,314,102,535.37
  5. Step 5: Solve for x
    x = 34,314,102,535.37/209,337.57
  6. Step 6: Final answer
    x = 163,917.55

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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.