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Finding the Fourth Proportional to 381,313.56, 526,275.66 and 211,602.36

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Solution

The fourth proportional to 381,313.56, 526,275.66 and 211,602.36 is: 292,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,313.56 : 526,275.66 = 211,602.36 : x
  2. Step 2: Convert to fraction form
    381,313.56/526,275.66 = 211,602.36/x
  3. Step 3: Cross multiply
    381,313.56x = 526,275.66 × 211,602.36
  4. Step 4: Simplify right side
    381,313.56x = 111,361,171,666.56
  5. Step 5: Solve for x
    x = 111,361,171,666.56/381,313.56
  6. Step 6: Final answer
    x = 292,046.19

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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.