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Finding the Fourth Proportional to 230,665.80, 345,996.60 and 72,894.24

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Solution

The fourth proportional to 230,665.80, 345,996.60 and 72,894.24 is: 109,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,665.80 : 345,996.60 = 72,894.24 : x
  2. Step 2: Convert to fraction form
    230,665.80/345,996.60 = 72,894.24/x
  3. Step 3: Cross multiply
    230,665.80x = 345,996.60 × 72,894.24
  4. Step 4: Simplify right side
    230,665.80x = 25,221,159,199.58
  5. Step 5: Solve for x
    x = 25,221,159,199.58/230,665.80
  6. Step 6: Final answer
    x = 109,340.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.