Home / 279,347.28-385,498.44-158,512.20

Finding the Fourth Proportional to 279,347.28, 385,498.44 and 158,512.20

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Solution

The fourth proportional to 279,347.28, 385,498.44 and 158,512.20 is: 218,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,347.28 : 385,498.44 = 158,512.20 : x
  2. Step 2: Convert to fraction form
    279,347.28/385,498.44 = 158,512.20/x
  3. Step 3: Cross multiply
    279,347.28x = 385,498.44 × 158,512.20
  4. Step 4: Simplify right side
    279,347.28x = 61,106,205,820.97
  5. Step 5: Solve for x
    x = 61,106,205,820.97/279,347.28
  6. Step 6: Final answer
    x = 218,746.38

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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.