Home / 343,004.05-514,306.64-129,788.43

Finding the Fourth Proportional to 343,004.05, 514,306.64 and 129,788.43

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Solution

The fourth proportional to 343,004.05, 514,306.64 and 129,788.43 is: 194,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,004.05 : 514,306.64 = 129,788.43 : x
  2. Step 2: Convert to fraction form
    343,004.05/514,306.64 = 129,788.43/x
  3. Step 3: Cross multiply
    343,004.05x = 514,306.64 × 129,788.43
  4. Step 4: Simplify right side
    343,004.05x = 66,751,051,344.18
  5. Step 5: Solve for x
    x = 66,751,051,344.18/343,004.05
  6. Step 6: Final answer
    x = 194,607.18

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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.