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Finding the Fourth Proportional to 319,074.76, 440,326.08 and 175,839.92

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Solution

The fourth proportional to 319,074.76, 440,326.08 and 175,839.92 is: 242,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,074.76 : 440,326.08 = 175,839.92 : x
  2. Step 2: Convert to fraction form
    319,074.76/440,326.08 = 175,839.92/x
  3. Step 3: Cross multiply
    319,074.76x = 440,326.08 × 175,839.92
  4. Step 4: Simplify right side
    319,074.76x = 77,426,902,681.11
  5. Step 5: Solve for x
    x = 77,426,902,681.11/319,074.76
  6. Step 6: Final answer
    x = 242,660.69

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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.