Home / 276,220.32-414,348.02-86,688.20

Finding the Fourth Proportional to 276,220.32, 414,348.02 and 86,688.20

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Solution

The fourth proportional to 276,220.32, 414,348.02 and 86,688.20 is: 130,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,220.32 : 414,348.02 = 86,688.20 : x
  2. Step 2: Convert to fraction form
    276,220.32/414,348.02 = 86,688.20/x
  3. Step 3: Cross multiply
    276,220.32x = 414,348.02 × 86,688.20
  4. Step 4: Simplify right side
    276,220.32x = 35,919,081,522.18
  5. Step 5: Solve for x
    x = 35,919,081,522.18/276,220.32
  6. Step 6: Final answer
    x = 130,037.80

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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.