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Finding the Fourth Proportional to 381,254.13, 526,193.69 and 211,542.93

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Solution

The fourth proportional to 381,254.13, 526,193.69 and 211,542.93 is: 291,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,254.13 : 526,193.69 = 211,542.93 : x
  2. Step 2: Convert to fraction form
    381,254.13/526,193.69 = 211,542.93/x
  3. Step 3: Cross multiply
    381,254.13x = 526,193.69 × 211,542.93
  4. Step 4: Simplify right side
    381,254.13x = 111,312,553,872.40
  5. Step 5: Solve for x
    x = 111,312,553,872.40/381,254.13
  6. Step 6: Final answer
    x = 291,964.19

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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.