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Finding the Fourth Proportional to 276,099.20, 414,148.80 and 266,476.40

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Solution

The fourth proportional to 276,099.20, 414,148.80 and 266,476.40 is: 399,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,099.20 : 414,148.80 = 266,476.40 : x
  2. Step 2: Convert to fraction form
    276,099.20/414,148.80 = 266,476.40/x
  3. Step 3: Cross multiply
    276,099.20x = 414,148.80 × 266,476.40
  4. Step 4: Simplify right side
    276,099.20x = 110,360,881,288.32
  5. Step 5: Solve for x
    x = 110,360,881,288.32/276,099.20
  6. Step 6: Final answer
    x = 399,714.60

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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.