Home / 313,626.20-432,801.78-170,387.28

Finding the Fourth Proportional to 313,626.20, 432,801.78 and 170,387.28

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Solution

The fourth proportional to 313,626.20, 432,801.78 and 170,387.28 is: 235,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,626.20 : 432,801.78 = 170,387.28 : x
  2. Step 2: Convert to fraction form
    313,626.20/432,801.78 = 170,387.28/x
  3. Step 3: Cross multiply
    313,626.20x = 432,801.78 × 170,387.28
  4. Step 4: Simplify right side
    313,626.20x = 73,743,918,073.36
  5. Step 5: Solve for x
    x = 73,743,918,073.36/313,626.20
  6. Step 6: Final answer
    x = 235,133.16

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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.