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Finding the Fourth Proportional to 359,458.58, 495,964.38 and 219,721.73

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Solution

The fourth proportional to 359,458.58, 495,964.38 and 219,721.73 is: 303,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,458.58 : 495,964.38 = 219,721.73 : x
  2. Step 2: Convert to fraction form
    359,458.58/495,964.38 = 219,721.73/x
  3. Step 3: Cross multiply
    359,458.58x = 495,964.38 × 219,721.73
  4. Step 4: Simplify right side
    359,458.58x = 108,974,151,591.98
  5. Step 5: Solve for x
    x = 108,974,151,591.98/359,458.58
  6. Step 6: Final answer
    x = 303,161.92

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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.