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Finding the Fourth Proportional to 188,287.20, 280,769.40 and 162,159.84

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Solution

The fourth proportional to 188,287.20, 280,769.40 and 162,159.84 is: 241,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,287.20 : 280,769.40 = 162,159.84 : x
  2. Step 2: Convert to fraction form
    188,287.20/280,769.40 = 162,159.84/x
  3. Step 3: Cross multiply
    188,287.20x = 280,769.40 × 162,159.84
  4. Step 4: Simplify right side
    188,287.20x = 45,529,520,980.90
  5. Step 5: Solve for x
    x = 45,529,520,980.90/188,287.20
  6. Step 6: Final answer
    x = 241,808.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.