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Finding the Fourth Proportional to 358,480.80, 537,721.20 and 148,269.60

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Solution

The fourth proportional to 358,480.80, 537,721.20 and 148,269.60 is: 222,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,480.80 : 537,721.20 = 148,269.60 : x
  2. Step 2: Convert to fraction form
    358,480.80/537,721.20 = 148,269.60/x
  3. Step 3: Cross multiply
    358,480.80x = 537,721.20 × 148,269.60
  4. Step 4: Simplify right side
    358,480.80x = 79,727,707,235.52
  5. Step 5: Solve for x
    x = 79,727,707,235.52/358,480.80
  6. Step 6: Final answer
    x = 222,404.40

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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.