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Finding the Fourth Proportional to 381,360.59, 526,195.39 and 220,122.21

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Solution

The fourth proportional to 381,360.59, 526,195.39 and 220,122.21 is: 303,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,360.59 : 526,195.39 = 220,122.21 : x
  2. Step 2: Convert to fraction form
    381,360.59/526,195.39 = 220,122.21/x
  3. Step 3: Cross multiply
    381,360.59x = 526,195.39 × 220,122.21
  4. Step 4: Simplify right side
    381,360.59x = 115,827,291,588.31
  5. Step 5: Solve for x
    x = 115,827,291,588.31/381,360.59
  6. Step 6: Final answer
    x = 303,721.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.