Home / 313,630.74-432,812.03-170,391.15

Finding the Fourth Proportional to 313,630.74, 432,812.03 and 170,391.15

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Solution

The fourth proportional to 313,630.74, 432,812.03 and 170,391.15 is: 235,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,630.74 : 432,812.03 = 170,391.15 : x
  2. Step 2: Convert to fraction form
    313,630.74/432,812.03 = 170,391.15/x
  3. Step 3: Cross multiply
    313,630.74x = 432,812.03 × 170,391.15
  4. Step 4: Simplify right side
    313,630.74x = 73,747,338,673.58
  5. Step 5: Solve for x
    x = 73,747,338,673.58/313,630.74
  6. Step 6: Final answer
    x = 235,140.66

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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.