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Finding the Fourth Proportional to 311,895.74, 467,760.58 and 87,242.24

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Solution

The fourth proportional to 311,895.74, 467,760.58 and 87,242.24 is: 130,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,895.74 : 467,760.58 = 87,242.24 : x
  2. Step 2: Convert to fraction form
    311,895.74/467,760.58 = 87,242.24/x
  3. Step 3: Cross multiply
    311,895.74x = 467,760.58 × 87,242.24
  4. Step 4: Simplify right side
    311,895.74x = 40,808,481,734.20
  5. Step 5: Solve for x
    x = 40,808,481,734.20/311,895.74
  6. Step 6: Final answer
    x = 130,840.14

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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.