Home / 268,512.10-402,422.55-163,219.30

Finding the Fourth Proportional to 268,512.10, 402,422.55 and 163,219.30

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Solution

The fourth proportional to 268,512.10, 402,422.55 and 163,219.30 is: 244,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,512.10 : 402,422.55 = 163,219.30 : x
  2. Step 2: Convert to fraction form
    268,512.10/402,422.55 = 163,219.30/x
  3. Step 3: Cross multiply
    268,512.10x = 402,422.55 × 163,219.30
  4. Step 4: Simplify right side
    268,512.10x = 65,683,126,915.22
  5. Step 5: Solve for x
    x = 65,683,126,915.22/268,512.10
  6. Step 6: Final answer
    x = 244,618.87

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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.