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Finding the Fourth Proportional to 262,258.80, 393,679.80 and 162,531.60

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Solution

The fourth proportional to 262,258.80, 393,679.80 and 162,531.60 is: 243,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,258.80 : 393,679.80 = 162,531.60 : x
  2. Step 2: Convert to fraction form
    262,258.80/393,679.80 = 162,531.60/x
  3. Step 3: Cross multiply
    262,258.80x = 393,679.80 × 162,531.60
  4. Step 4: Simplify right side
    262,258.80x = 63,985,407,781.68
  5. Step 5: Solve for x
    x = 63,985,407,781.68/262,258.80
  6. Step 6: Final answer
    x = 243,978.12

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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.