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Finding the Fourth Proportional to 311,516.28, 467,313.28 and 121,952.16

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Solution

The fourth proportional to 311,516.28, 467,313.28 and 121,952.16 is: 182,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,516.28 : 467,313.28 = 121,952.16 : x
  2. Step 2: Convert to fraction form
    311,516.28/467,313.28 = 121,952.16/x
  3. Step 3: Cross multiply
    311,516.28x = 467,313.28 × 121,952.16
  4. Step 4: Simplify right side
    311,516.28x = 56,989,863,892.68
  5. Step 5: Solve for x
    x = 56,989,863,892.68/311,516.28
  6. Step 6: Final answer
    x = 182,943.45

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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.