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Finding the Fourth Proportional to 230,576.67, 318,141.63 and 139,930.62

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Solution

The fourth proportional to 230,576.67, 318,141.63 and 139,930.62 is: 193,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,576.67 : 318,141.63 = 139,930.62 : x
  2. Step 2: Convert to fraction form
    230,576.67/318,141.63 = 139,930.62/x
  3. Step 3: Cross multiply
    230,576.67x = 318,141.63 × 139,930.62
  4. Step 4: Simplify right side
    230,576.67x = 44,517,755,533.71
  5. Step 5: Solve for x
    x = 44,517,755,533.71/230,576.67
  6. Step 6: Final answer
    x = 193,071.38

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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.