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Finding the Fourth Proportional to 371,404.20, 557,252.10 and 146,726.40

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Solution

The fourth proportional to 371,404.20, 557,252.10 and 146,726.40 is: 220,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,404.20 : 557,252.10 = 146,726.40 : x
  2. Step 2: Convert to fraction form
    371,404.20/557,252.10 = 146,726.40/x
  3. Step 3: Cross multiply
    371,404.20x = 557,252.10 × 146,726.40
  4. Step 4: Simplify right side
    371,404.20x = 81,763,594,525.44
  5. Step 5: Solve for x
    x = 81,763,594,525.44/371,404.20
  6. Step 6: Final answer
    x = 220,147.20

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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.