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Finding the Fourth Proportional to 311,437.80, 466,865.10 and 243,932.40

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Solution

The fourth proportional to 311,437.80, 466,865.10 and 243,932.40 is: 365,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,437.80 : 466,865.10 = 243,932.40 : x
  2. Step 2: Convert to fraction form
    311,437.80/466,865.10 = 243,932.40/x
  3. Step 3: Cross multiply
    311,437.80x = 466,865.10 × 243,932.40
  4. Step 4: Simplify right side
    311,437.80x = 113,883,524,319.24
  5. Step 5: Solve for x
    x = 113,883,524,319.24/311,437.80
  6. Step 6: Final answer
    x = 365,670.21

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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.