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Finding the Fourth Proportional to 276,483.71, 414,725.19 and 86,960.72

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Solution

The fourth proportional to 276,483.71, 414,725.19 and 86,960.72 is: 130,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,483.71 : 414,725.19 = 86,960.72 : x
  2. Step 2: Convert to fraction form
    276,483.71/414,725.19 = 86,960.72/x
  3. Step 3: Cross multiply
    276,483.71x = 414,725.19 × 86,960.72
  4. Step 4: Simplify right side
    276,483.71x = 36,064,799,050.91
  5. Step 5: Solve for x
    x = 36,064,799,050.91/276,483.71
  6. Step 6: Final answer
    x = 130,440.96

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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.