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Finding the Fourth Proportional to 276,693.60, 415,040.40 and 89,705.10

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Solution

The fourth proportional to 276,693.60, 415,040.40 and 89,705.10 is: 134,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,693.60 : 415,040.40 = 89,705.10 : x
  2. Step 2: Convert to fraction form
    276,693.60/415,040.40 = 89,705.10/x
  3. Step 3: Cross multiply
    276,693.60x = 415,040.40 × 89,705.10
  4. Step 4: Simplify right side
    276,693.60x = 37,231,240,586.04
  5. Step 5: Solve for x
    x = 37,231,240,586.04/276,693.60
  6. Step 6: Final answer
    x = 134,557.65

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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.