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Finding the Fourth Proportional to 372,662.32, 514,248.06 and 211,520.65

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Solution

The fourth proportional to 372,662.32, 514,248.06 and 211,520.65 is: 291,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,662.32 : 514,248.06 = 211,520.65 : x
  2. Step 2: Convert to fraction form
    372,662.32/514,248.06 = 211,520.65/x
  3. Step 3: Cross multiply
    372,662.32x = 514,248.06 × 211,520.65
  4. Step 4: Simplify right side
    372,662.32x = 108,774,083,912.44
  5. Step 5: Solve for x
    x = 108,774,083,912.44/372,662.32
  6. Step 6: Final answer
    x = 291,883.77

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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.