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Finding the Fourth Proportional to 230,329.98, 345,524.13 and 90,070.38

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Solution

The fourth proportional to 230,329.98, 345,524.13 and 90,070.38 is: 135,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,329.98 : 345,524.13 = 90,070.38 : x
  2. Step 2: Convert to fraction form
    230,329.98/345,524.13 = 90,070.38/x
  3. Step 3: Cross multiply
    230,329.98x = 345,524.13 × 90,070.38
  4. Step 4: Simplify right side
    230,329.98x = 31,121,489,688.27
  5. Step 5: Solve for x
    x = 31,121,489,688.27/230,329.98
  6. Step 6: Final answer
    x = 135,116.97

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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.