Home / 231,613.56-319,826.19-145,715.72

Finding the Fourth Proportional to 231,613.56, 319,826.19 and 145,715.72

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Solution

The fourth proportional to 231,613.56, 319,826.19 and 145,715.72 is: 201,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,613.56 : 319,826.19 = 145,715.72 : x
  2. Step 2: Convert to fraction form
    231,613.56/319,826.19 = 145,715.72/x
  3. Step 3: Cross multiply
    231,613.56x = 319,826.19 × 145,715.72
  4. Step 4: Simplify right side
    231,613.56x = 46,603,701,223.00
  5. Step 5: Solve for x
    x = 46,603,701,223.00/231,613.56
  6. Step 6: Final answer
    x = 201,213.18

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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.