Home / 391,835.15-540,791.62-238,962.03

Finding the Fourth Proportional to 391,835.15, 540,791.62 and 238,962.03

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Solution

The fourth proportional to 391,835.15, 540,791.62 and 238,962.03 is: 329,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,835.15 : 540,791.62 = 238,962.03 : x
  2. Step 2: Convert to fraction form
    391,835.15/540,791.62 = 238,962.03/x
  3. Step 3: Cross multiply
    391,835.15x = 540,791.62 × 238,962.03
  4. Step 4: Simplify right side
    391,835.15x = 129,228,663,322.19
  5. Step 5: Solve for x
    x = 129,228,663,322.19/391,835.15
  6. Step 6: Final answer
    x = 329,803.65

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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.