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Finding the Fourth Proportional to 311,168.40, 466,579.80 and 123,968.40

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Solution

The fourth proportional to 311,168.40, 466,579.80 and 123,968.40 is: 185,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,168.40 : 466,579.80 = 123,968.40 : x
  2. Step 2: Convert to fraction form
    311,168.40/466,579.80 = 123,968.40/x
  3. Step 3: Cross multiply
    311,168.40x = 466,579.80 × 123,968.40
  4. Step 4: Simplify right side
    311,168.40x = 57,841,151,278.32
  5. Step 5: Solve for x
    x = 57,841,151,278.32/311,168.40
  6. Step 6: Final answer
    x = 185,883.76

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1.5x scale

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.