Home / 313,680.07-432,881.13-170,440.11

Finding the Fourth Proportional to 313,680.07, 432,881.13 and 170,440.11

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Solution

The fourth proportional to 313,680.07, 432,881.13 and 170,440.11 is: 235,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,680.07 : 432,881.13 = 170,440.11 : x
  2. Step 2: Convert to fraction form
    313,680.07/432,881.13 = 170,440.11/x
  3. Step 3: Cross multiply
    313,680.07x = 432,881.13 × 170,440.11
  4. Step 4: Simplify right side
    313,680.07x = 73,780,307,414.12
  5. Step 5: Solve for x
    x = 73,780,307,414.12/313,680.07
  6. Step 6: Final answer
    x = 235,208.78

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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.