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Finding the Fourth Proportional to 276,281.20, 414,421.80 and 274,312.90

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Solution

The fourth proportional to 276,281.20, 414,421.80 and 274,312.90 is: 411,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,281.20 : 414,421.80 = 274,312.90 : x
  2. Step 2: Convert to fraction form
    276,281.20/414,421.80 = 274,312.90/x
  3. Step 3: Cross multiply
    276,281.20x = 414,421.80 × 274,312.90
  4. Step 4: Simplify right side
    276,281.20x = 113,681,245,781.22
  5. Step 5: Solve for x
    x = 113,681,245,781.22/276,281.20
  6. Step 6: Final answer
    x = 411,469.35

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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.