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Finding the Fourth Proportional to 480,013.44, 720,020.16 and 147,589.44

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Solution

The fourth proportional to 480,013.44, 720,020.16 and 147,589.44 is: 221,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,013.44 : 720,020.16 = 147,589.44 : x
  2. Step 2: Convert to fraction form
    480,013.44/720,020.16 = 147,589.44/x
  3. Step 3: Cross multiply
    480,013.44x = 720,020.16 × 147,589.44
  4. Step 4: Simplify right side
    480,013.44x = 106,267,372,203.11
  5. Step 5: Solve for x
    x = 106,267,372,203.11/480,013.44
  6. Step 6: Final answer
    x = 221,384.16

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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.