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Finding the Fourth Proportional to 370,198.65, 510,877.53 and 217,239.41

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Solution

The fourth proportional to 370,198.65, 510,877.53 and 217,239.41 is: 299,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,198.65 : 510,877.53 = 217,239.41 : x
  2. Step 2: Convert to fraction form
    370,198.65/510,877.53 = 217,239.41/x
  3. Step 3: Cross multiply
    370,198.65x = 510,877.53 × 217,239.41
  4. Step 4: Simplify right side
    370,198.65x = 110,982,730,645.07
  5. Step 5: Solve for x
    x = 110,982,730,645.07/370,198.65
  6. Step 6: Final answer
    x = 299,792.37

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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.