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Finding the Fourth Proportional to 268,963.30, 403,444.95 and 156,770.20

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Solution

The fourth proportional to 268,963.30, 403,444.95 and 156,770.20 is: 235,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,963.30 : 403,444.95 = 156,770.20 : x
  2. Step 2: Convert to fraction form
    268,963.30/403,444.95 = 156,770.20/x
  3. Step 3: Cross multiply
    268,963.30x = 403,444.95 × 156,770.20
  4. Step 4: Simplify right side
    268,963.30x = 63,248,145,500.49
  5. Step 5: Solve for x
    x = 63,248,145,500.49/268,963.30
  6. Step 6: Final answer
    x = 235,155.30

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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.