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Finding the Fourth Proportional to 276,140.80, 414,211.20 and 89,152.30

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Solution

The fourth proportional to 276,140.80, 414,211.20 and 89,152.30 is: 133,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,140.80 : 414,211.20 = 89,152.30 : x
  2. Step 2: Convert to fraction form
    276,140.80/414,211.20 = 89,152.30/x
  3. Step 3: Cross multiply
    276,140.80x = 414,211.20 × 89,152.30
  4. Step 4: Simplify right side
    276,140.80x = 36,927,881,165.76
  5. Step 5: Solve for x
    x = 36,927,881,165.76/276,140.80
  6. Step 6: Final answer
    x = 133,728.45

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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.