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Finding the Fourth Proportional to 268,290.40, 402,435.60 and 162,002.20

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Solution

The fourth proportional to 268,290.40, 402,435.60 and 162,002.20 is: 243,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,290.40 : 402,435.60 = 162,002.20 : x
  2. Step 2: Convert to fraction form
    268,290.40/402,435.60 = 162,002.20/x
  3. Step 3: Cross multiply
    268,290.40x = 402,435.60 × 162,002.20
  4. Step 4: Simplify right side
    268,290.40x = 65,195,452,558.32
  5. Step 5: Solve for x
    x = 65,195,452,558.32/268,290.40
  6. Step 6: Final answer
    x = 243,003.30

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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.