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Finding the Fourth Proportional to 381,174.26, 526,007.13 and 211,424.18

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Solution

The fourth proportional to 381,174.26, 526,007.13 and 211,424.18 is: 291,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,174.26 : 526,007.13 = 211,424.18 : x
  2. Step 2: Convert to fraction form
    381,174.26/526,007.13 = 211,424.18/x
  3. Step 3: Cross multiply
    381,174.26x = 526,007.13 × 211,424.18
  4. Step 4: Simplify right side
    381,174.26x = 111,210,626,134.40
  5. Step 5: Solve for x
    x = 111,210,626,134.40/381,174.26
  6. Step 6: Final answer
    x = 291,757.96

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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.