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Finding the Fourth Proportional to 480,096.40, 720,144.60 and 147,629.20

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Solution

The fourth proportional to 480,096.40, 720,144.60 and 147,629.20 is: 221,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,096.40 : 720,144.60 = 147,629.20 : x
  2. Step 2: Convert to fraction form
    480,096.40/720,144.60 = 147,629.20/x
  3. Step 3: Cross multiply
    480,096.40x = 720,144.60 × 147,629.20
  4. Step 4: Simplify right side
    480,096.40x = 106,314,371,182.32
  5. Step 5: Solve for x
    x = 106,314,371,182.32/480,096.40
  6. Step 6: Final answer
    x = 221,443.80

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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.