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Finding the Fourth Proportional to 328,824.80, 493,237.20 and 292,083.20

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Solution

The fourth proportional to 328,824.80, 493,237.20 and 292,083.20 is: 438,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,824.80 : 493,237.20 = 292,083.20 : x
  2. Step 2: Convert to fraction form
    328,824.80/493,237.20 = 292,083.20/x
  3. Step 3: Cross multiply
    328,824.80x = 493,237.20 × 292,083.20
  4. Step 4: Simplify right side
    328,824.80x = 144,066,299,735.04
  5. Step 5: Solve for x
    x = 144,066,299,735.04/328,824.80
  6. Step 6: Final answer
    x = 438,124.80

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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.