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Finding the Fourth Proportional to 381,260.20, 571,890.30 and 96,950.20

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Solution

The fourth proportional to 381,260.20, 571,890.30 and 96,950.20 is: 145,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,260.20 : 571,890.30 = 96,950.20 : x
  2. Step 2: Convert to fraction form
    381,260.20/571,890.30 = 96,950.20/x
  3. Step 3: Cross multiply
    381,260.20x = 571,890.30 × 96,950.20
  4. Step 4: Simplify right side
    381,260.20x = 55,444,878,963.06
  5. Step 5: Solve for x
    x = 55,444,878,963.06/381,260.20
  6. Step 6: Final answer
    x = 145,425.30

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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.