Home / 313,680.10-432,881.18-170,440.15

Finding the Fourth Proportional to 313,680.10, 432,881.18 and 170,440.15

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Solution

The fourth proportional to 313,680.10, 432,881.18 and 170,440.15 is: 235,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,680.10 : 432,881.18 = 170,440.15 : x
  2. Step 2: Convert to fraction form
    313,680.10/432,881.18 = 170,440.15/x
  3. Step 3: Cross multiply
    313,680.10x = 432,881.18 × 170,440.15
  4. Step 4: Simplify right side
    313,680.10x = 73,780,331,956.12
  5. Step 5: Solve for x
    x = 73,780,331,956.12/313,680.10
  6. Step 6: Final answer
    x = 235,208.84

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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.