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Finding the Fourth Proportional to 276,479.64, 414,785.25 and 89,491.14

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Solution

The fourth proportional to 276,479.64, 414,785.25 and 89,491.14 is: 134,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,479.64 : 414,785.25 = 89,491.14 : x
  2. Step 2: Convert to fraction form
    276,479.64/414,785.25 = 89,491.14/x
  3. Step 3: Cross multiply
    276,479.64x = 414,785.25 × 89,491.14
  4. Step 4: Simplify right side
    276,479.64x = 37,119,604,877.69
  5. Step 5: Solve for x
    x = 37,119,604,877.69/276,479.64
  6. Step 6: Final answer
    x = 134,258.00

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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.