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Finding the Fourth Proportional to 332,028.40, 498,107.40 and 142,488.40

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Solution

The fourth proportional to 332,028.40, 498,107.40 and 142,488.40 is: 213,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,028.40 : 498,107.40 = 142,488.40 : x
  2. Step 2: Convert to fraction form
    332,028.40/498,107.40 = 142,488.40/x
  3. Step 3: Cross multiply
    332,028.40x = 498,107.40 × 142,488.40
  4. Step 4: Simplify right side
    332,028.40x = 70,974,526,454.16
  5. Step 5: Solve for x
    x = 70,974,526,454.16/332,028.40
  6. Step 6: Final answer
    x = 213,760.41

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1.5x scale

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.