Home / 311,984.11-430,538.10-168,744.16

Finding the Fourth Proportional to 311,984.11, 430,538.10 and 168,744.16

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Solution

The fourth proportional to 311,984.11, 430,538.10 and 168,744.16 is: 232,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,984.11 : 430,538.10 = 168,744.16 : x
  2. Step 2: Convert to fraction form
    311,984.11/430,538.10 = 168,744.16/x
  3. Step 3: Cross multiply
    311,984.11x = 430,538.10 × 168,744.16
  4. Step 4: Simplify right side
    311,984.11x = 72,650,788,101.58
  5. Step 5: Solve for x
    x = 72,650,788,101.58/311,984.11
  6. Step 6: Final answer
    x = 232,866.95

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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.