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Finding the Fourth Proportional to 318,332.84, 439,299.54 and 175,103.78

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Solution

The fourth proportional to 318,332.84, 439,299.54 and 175,103.78 is: 241,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,332.84 : 439,299.54 = 175,103.78 : x
  2. Step 2: Convert to fraction form
    318,332.84/439,299.54 = 175,103.78/x
  3. Step 3: Cross multiply
    318,332.84x = 439,299.54 × 175,103.78
  4. Step 4: Simplify right side
    318,332.84x = 76,923,010,006.26
  5. Step 5: Solve for x
    x = 76,923,010,006.26/318,332.84
  6. Step 6: Final answer
    x = 241,643.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.