Home / 311,972.40-430,406.46-204,602.04

Finding the Fourth Proportional to 311,972.40, 430,406.46 and 204,602.04

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Solution

The fourth proportional to 311,972.40, 430,406.46 and 204,602.04 is: 282,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,972.40 : 430,406.46 = 204,602.04 : x
  2. Step 2: Convert to fraction form
    311,972.40/430,406.46 = 204,602.04/x
  3. Step 3: Cross multiply
    311,972.40x = 430,406.46 × 204,602.04
  4. Step 4: Simplify right side
    311,972.40x = 88,062,039,745.18
  5. Step 5: Solve for x
    x = 88,062,039,745.18/311,972.40
  6. Step 6: Final answer
    x = 282,275.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.