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Finding the Fourth Proportional to 230,496.30, 345,744.45 and 72,740.70

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Solution

The fourth proportional to 230,496.30, 345,744.45 and 72,740.70 is: 109,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,496.30 : 345,744.45 = 72,740.70 : x
  2. Step 2: Convert to fraction form
    230,496.30/345,744.45 = 72,740.70/x
  3. Step 3: Cross multiply
    230,496.30x = 345,744.45 × 72,740.70
  4. Step 4: Simplify right side
    230,496.30x = 25,149,693,314.12
  5. Step 5: Solve for x
    x = 25,149,693,314.12/230,496.30
  6. Step 6: Final answer
    x = 109,111.05

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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.