Home / 343,196.28-514,489.86-129,815.19

Finding the Fourth Proportional to 343,196.28, 514,489.86 and 129,815.19

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Solution

The fourth proportional to 343,196.28, 514,489.86 and 129,815.19 is: 194,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,196.28 : 514,489.86 = 129,815.19 : x
  2. Step 2: Convert to fraction form
    343,196.28/514,489.86 = 129,815.19/x
  3. Step 3: Cross multiply
    343,196.28x = 514,489.86 × 129,815.19
  4. Step 4: Simplify right side
    343,196.28x = 66,788,598,928.97
  5. Step 5: Solve for x
    x = 66,788,598,928.97/343,196.28
  6. Step 6: Final answer
    x = 194,607.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.