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Finding the Fourth Proportional to 230,471.83, 318,072.02 and 139,850.76

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Solution

The fourth proportional to 230,471.83, 318,072.02 and 139,850.76 is: 193,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,471.83 : 318,072.02 = 139,850.76 : x
  2. Step 2: Convert to fraction form
    230,471.83/318,072.02 = 139,850.76/x
  3. Step 3: Cross multiply
    230,471.83x = 318,072.02 × 139,850.76
  4. Step 4: Simplify right side
    230,471.83x = 44,482,613,731.74
  5. Step 5: Solve for x
    x = 44,482,613,731.74/230,471.83
  6. Step 6: Final answer
    x = 193,006.73

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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.