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Finding the Fourth Proportional to 276,342.34, 414,522.39 and 76,664.74

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Solution

The fourth proportional to 276,342.34, 414,522.39 and 76,664.74 is: 114,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,342.34 : 414,522.39 = 76,664.74 : x
  2. Step 2: Convert to fraction form
    276,342.34/414,522.39 = 76,664.74/x
  3. Step 3: Cross multiply
    276,342.34x = 414,522.39 × 76,664.74
  4. Step 4: Simplify right side
    276,342.34x = 31,779,251,253.53
  5. Step 5: Solve for x
    x = 31,779,251,253.53/276,342.34
  6. Step 6: Final answer
    x = 114,999.57

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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.