Home / 399,272.28-550,943.40-238,146.24

Finding the Fourth Proportional to 399,272.28, 550,943.40 and 238,146.24

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Solution

The fourth proportional to 399,272.28, 550,943.40 and 238,146.24 is: 328,610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,272.28 : 550,943.40 = 238,146.24 : x
  2. Step 2: Convert to fraction form
    399,272.28/550,943.40 = 238,146.24/x
  3. Step 3: Cross multiply
    399,272.28x = 550,943.40 × 238,146.24
  4. Step 4: Simplify right side
    399,272.28x = 131,205,099,162.82
  5. Step 5: Solve for x
    x = 131,205,099,162.82/399,272.28
  6. Step 6: Final answer
    x = 328,610.59

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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.