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Finding the Fourth Proportional to 617,524.65, 926,161.02 and 218,178.45

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Solution

The fourth proportional to 617,524.65, 926,161.02 and 218,178.45 is: 327,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,524.65 : 926,161.02 = 218,178.45 : x
  2. Step 2: Convert to fraction form
    617,524.65/926,161.02 = 218,178.45/x
  3. Step 3: Cross multiply
    617,524.65x = 926,161.02 × 218,178.45
  4. Step 4: Simplify right side
    617,524.65x = 202,068,375,794.02
  5. Step 5: Solve for x
    x = 202,068,375,794.02/617,524.65
  6. Step 6: Final answer
    x = 327,223.17

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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.