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Finding the Fourth Proportional to 313,273.92, 432,321.12 and 170,035.20

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Solution

The fourth proportional to 313,273.92, 432,321.12 and 170,035.20 is: 234,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,273.92 : 432,321.12 = 170,035.20 : x
  2. Step 2: Convert to fraction form
    313,273.92/432,321.12 = 170,035.20/x
  3. Step 3: Cross multiply
    313,273.92x = 432,321.12 × 170,035.20
  4. Step 4: Simplify right side
    313,273.92x = 73,509,808,103.42
  5. Step 5: Solve for x
    x = 73,509,808,103.42/313,273.92
  6. Step 6: Final answer
    x = 234,650.26

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1.5x scale

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.