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Finding the Fourth Proportional to 313,358.66, 432,440.17 and 170,118.73

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Solution

The fourth proportional to 313,358.66, 432,440.17 and 170,118.73 is: 234,766.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,358.66 : 432,440.17 = 170,118.73 : x
  2. Step 2: Convert to fraction form
    313,358.66/432,440.17 = 170,118.73/x
  3. Step 3: Cross multiply
    313,358.66x = 432,440.17 × 170,118.73
  4. Step 4: Simplify right side
    313,358.66x = 73,566,171,670.79
  5. Step 5: Solve for x
    x = 73,566,171,670.79/313,358.66
  6. Step 6: Final answer
    x = 234,766.68

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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.