Home / 343,854.18-515,171.07-143,733.42

Finding the Fourth Proportional to 343,854.18, 515,171.07 and 143,733.42

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Solution

The fourth proportional to 343,854.18, 515,171.07 and 143,733.42 is: 215,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,854.18 : 515,171.07 = 143,733.42 : x
  2. Step 2: Convert to fraction form
    343,854.18/515,171.07 = 143,733.42/x
  3. Step 3: Cross multiply
    343,854.18x = 515,171.07 × 143,733.42
  4. Step 4: Simplify right side
    343,854.18x = 74,047,299,776.16
  5. Step 5: Solve for x
    x = 74,047,299,776.16/343,854.18
  6. Step 6: Final answer
    x = 215,345.06

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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.