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Finding the Fourth Proportional to 372,471.92, 514,022.92 and 211,333.76

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Solution

The fourth proportional to 372,471.92, 514,022.92 and 211,333.76 is: 291,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,471.92 : 514,022.92 = 211,333.76 : x
  2. Step 2: Convert to fraction form
    372,471.92/514,022.92 = 211,333.76/x
  3. Step 3: Cross multiply
    372,471.92x = 514,022.92 × 211,333.76
  4. Step 4: Simplify right side
    372,471.92x = 108,630,396,409.78
  5. Step 5: Solve for x
    x = 108,630,396,409.78/372,471.92
  6. Step 6: Final answer
    x = 291,647.21

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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.