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Finding the Fourth Proportional to 218,901.01, 328,351.61 and 52,689.01

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Solution

The fourth proportional to 218,901.01, 328,351.61 and 52,689.01 is: 79,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,901.01 : 328,351.61 = 52,689.01 : x
  2. Step 2: Convert to fraction form
    218,901.01/328,351.61 = 52,689.01/x
  3. Step 3: Cross multiply
    218,901.01x = 328,351.61 × 52,689.01
  4. Step 4: Simplify right side
    218,901.01x = 17,300,521,262.81
  5. Step 5: Solve for x
    x = 17,300,521,262.81/218,901.01
  6. Step 6: Final answer
    x = 79,033.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.