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Finding the Fourth Proportional to 319,107.66, 440,367.13 and 175,867.39

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Solution

The fourth proportional to 319,107.66, 440,367.13 and 175,867.39 is: 242,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,107.66 : 440,367.13 = 175,867.39 : x
  2. Step 2: Convert to fraction form
    319,107.66/440,367.13 = 175,867.39/x
  3. Step 3: Cross multiply
    319,107.66x = 440,367.13 × 175,867.39
  4. Step 4: Simplify right side
    319,107.66x = 77,446,217,794.89
  5. Step 5: Solve for x
    x = 77,446,217,794.89/319,107.66
  6. Step 6: Final answer
    x = 242,696.20

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1.5x scale

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.