Home / 231,613.06-319,825.50-145,715.22

Finding the Fourth Proportional to 231,613.06, 319,825.50 and 145,715.22

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Solution

The fourth proportional to 231,613.06, 319,825.50 and 145,715.22 is: 201,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,613.06 : 319,825.50 = 145,715.22 : x
  2. Step 2: Convert to fraction form
    231,613.06/319,825.50 = 145,715.22/x
  3. Step 3: Cross multiply
    231,613.06x = 319,825.50 × 145,715.22
  4. Step 4: Simplify right side
    231,613.06x = 46,603,440,766.41
  5. Step 5: Solve for x
    x = 46,603,440,766.41/231,613.06
  6. Step 6: Final answer
    x = 201,212.49

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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.