Home / 319,899.24-479,799.65-106,670.86

Finding the Fourth Proportional to 319,899.24, 479,799.65 and 106,670.86

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Solution

The fourth proportional to 319,899.24, 479,799.65 and 106,670.86 is: 159,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,899.24 : 479,799.65 = 106,670.86 : x
  2. Step 2: Convert to fraction form
    319,899.24/479,799.65 = 106,670.86/x
  3. Step 3: Cross multiply
    319,899.24x = 479,799.65 × 106,670.86
  4. Step 4: Simplify right side
    319,899.24x = 51,180,640,360.38
  5. Step 5: Solve for x
    x = 51,180,640,360.38/319,899.24
  6. Step 6: Final answer
    x = 159,989.88

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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.