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Finding the Fourth Proportional to 313,662.42, 432,854.60 and 170,422.43

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Solution

The fourth proportional to 313,662.42, 432,854.60 and 170,422.43 is: 235,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,662.42 : 432,854.60 = 170,422.43 : x
  2. Step 2: Convert to fraction form
    313,662.42/432,854.60 = 170,422.43/x
  3. Step 3: Cross multiply
    313,662.42x = 432,854.60 × 170,422.43
  4. Step 4: Simplify right side
    313,662.42x = 73,768,129,752.29
  5. Step 5: Solve for x
    x = 73,768,129,752.29/313,662.42
  6. Step 6: Final answer
    x = 235,183.19

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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.