Home / 204,722.24-306,875.59-78,330.04

Finding the Fourth Proportional to 204,722.24, 306,875.59 and 78,330.04

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Solution

The fourth proportional to 204,722.24, 306,875.59 and 78,330.04 is: 117,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,722.24 : 306,875.59 = 78,330.04 : x
  2. Step 2: Convert to fraction form
    204,722.24/306,875.59 = 78,330.04/x
  3. Step 3: Cross multiply
    204,722.24x = 306,875.59 × 78,330.04
  4. Step 4: Simplify right side
    204,722.24x = 24,037,576,276.71
  5. Step 5: Solve for x
    x = 24,037,576,276.71/204,722.24
  6. Step 6: Final answer
    x = 117,415.56

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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.