Home / 319,079.39-440,329.56-175,839.43

Finding the Fourth Proportional to 319,079.39, 440,329.56 and 175,839.43

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Solution

The fourth proportional to 319,079.39, 440,329.56 and 175,839.43 is: 242,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,079.39 : 440,329.56 = 175,839.43 : x
  2. Step 2: Convert to fraction form
    319,079.39/440,329.56 = 175,839.43/x
  3. Step 3: Cross multiply
    319,079.39x = 440,329.56 × 175,839.43
  4. Step 4: Simplify right side
    319,079.39x = 77,427,298,842.55
  5. Step 5: Solve for x
    x = 77,427,298,842.55/319,079.39
  6. Step 6: Final answer
    x = 242,658.41

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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.