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Finding the Fourth Proportional to 209,159.28, 288,650.88 and 118,532.88

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Solution

The fourth proportional to 209,159.28, 288,650.88 and 118,532.88 is: 163,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,159.28 : 288,650.88 = 118,532.88 : x
  2. Step 2: Convert to fraction form
    209,159.28/288,650.88 = 118,532.88/x
  3. Step 3: Cross multiply
    209,159.28x = 288,650.88 × 118,532.88
  4. Step 4: Simplify right side
    209,159.28x = 34,214,620,120.93
  5. Step 5: Solve for x
    x = 34,214,620,120.93/209,159.28
  6. Step 6: Final answer
    x = 163,581.65

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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.