Home / 343,965.65-515,422.44-144,177.12

Finding the Fourth Proportional to 343,965.65, 515,422.44 and 144,177.12

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Solution

The fourth proportional to 343,965.65, 515,422.44 and 144,177.12 is: 216,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,965.65 : 515,422.44 = 144,177.12 : x
  2. Step 2: Convert to fraction form
    343,965.65/515,422.44 = 144,177.12/x
  3. Step 3: Cross multiply
    343,965.65x = 515,422.44 × 144,177.12
  4. Step 4: Simplify right side
    343,965.65x = 74,312,122,982.57
  5. Step 5: Solve for x
    x = 74,312,122,982.57/343,965.65
  6. Step 6: Final answer
    x = 216,045.19

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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.