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Finding the Fourth Proportional to 298,372.65, 411,763.20 and 183,717.45

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Solution

The fourth proportional to 298,372.65, 411,763.20 and 183,717.45 is: 253,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,372.65 : 411,763.20 = 183,717.45 : x
  2. Step 2: Convert to fraction form
    298,372.65/411,763.20 = 183,717.45/x
  3. Step 3: Cross multiply
    298,372.65x = 411,763.20 × 183,717.45
  4. Step 4: Simplify right side
    298,372.65x = 75,648,084,418.90
  5. Step 5: Solve for x
    x = 75,648,084,418.90/298,372.65
  6. Step 6: Final answer
    x = 253,535.59

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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.