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Finding the Fourth Proportional to 276,967.46, 415,284.93 and 127,019.90

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Solution

The fourth proportional to 276,967.46, 415,284.93 and 127,019.90 is: 190,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,967.46 : 415,284.93 = 127,019.90 : x
  2. Step 2: Convert to fraction form
    276,967.46/415,284.93 = 127,019.90/x
  3. Step 3: Cross multiply
    276,967.46x = 415,284.93 × 127,019.90
  4. Step 4: Simplify right side
    276,967.46x = 52,749,450,280.11
  5. Step 5: Solve for x
    x = 52,749,450,280.11/276,967.46
  6. Step 6: Final answer
    x = 190,453.60

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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.