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Finding the Fourth Proportional to 397,986.00, 549,230.52 and 216,707.86

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Solution

The fourth proportional to 397,986.00, 549,230.52 and 216,707.86 is: 299,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,986.00 : 549,230.52 = 216,707.86 : x
  2. Step 2: Convert to fraction form
    397,986.00/549,230.52 = 216,707.86/x
  3. Step 3: Cross multiply
    397,986.00x = 549,230.52 × 216,707.86
  4. Step 4: Simplify right side
    397,986.00x = 119,022,572,135.08
  5. Step 5: Solve for x
    x = 119,022,572,135.08/397,986.00
  6. Step 6: Final answer
    x = 299,062.21

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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.