Home / 268,801.08-403,261.74-81,827.16

Finding the Fourth Proportional to 268,801.08, 403,261.74 and 81,827.16

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Solution

The fourth proportional to 268,801.08, 403,261.74 and 81,827.16 is: 122,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,801.08 : 403,261.74 = 81,827.16 : x
  2. Step 2: Convert to fraction form
    268,801.08/403,261.74 = 81,827.16/x
  3. Step 3: Cross multiply
    268,801.08x = 403,261.74 × 81,827.16
  4. Step 4: Simplify right side
    268,801.08x = 32,997,762,920.86
  5. Step 5: Solve for x
    x = 32,997,762,920.86/268,801.08
  6. Step 6: Final answer
    x = 122,759.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.