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Finding the Fourth Proportional to 284,008.80, 425,851.20 and 106,521.60

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Solution

The fourth proportional to 284,008.80, 425,851.20 and 106,521.60 is: 159,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,008.80 : 425,851.20 = 106,521.60 : x
  2. Step 2: Convert to fraction form
    284,008.80/425,851.20 = 106,521.60/x
  3. Step 3: Cross multiply
    284,008.80x = 425,851.20 × 106,521.60
  4. Step 4: Simplify right side
    284,008.80x = 45,362,351,185.92
  5. Step 5: Solve for x
    x = 45,362,351,185.92/284,008.80
  6. Step 6: Final answer
    x = 159,721.64

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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.