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Finding the Fourth Proportional to 316,102.88, 436,022.52 and 220,574.72

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Solution

The fourth proportional to 316,102.88, 436,022.52 and 220,574.72 is: 304,253.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,102.88 : 436,022.52 = 220,574.72 : x
  2. Step 2: Convert to fraction form
    316,102.88/436,022.52 = 220,574.72/x
  3. Step 3: Cross multiply
    316,102.88x = 436,022.52 × 220,574.72
  4. Step 4: Simplify right side
    316,102.88x = 96,175,545,262.69
  5. Step 5: Solve for x
    x = 96,175,545,262.69/316,102.88
  6. Step 6: Final answer
    x = 304,253.94

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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.