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Finding the Fourth Proportional to 268,118.73, 401,565.58 and 127,975.77

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Solution

The fourth proportional to 268,118.73, 401,565.58 and 127,975.77 is: 191,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,118.73 : 401,565.58 = 127,975.77 : x
  2. Step 2: Convert to fraction form
    268,118.73/401,565.58 = 127,975.77/x
  3. Step 3: Cross multiply
    268,118.73x = 401,565.58 × 127,975.77
  4. Step 4: Simplify right side
    268,118.73x = 51,390,664,306.00
  5. Step 5: Solve for x
    x = 51,390,664,306.00/268,118.73
  6. Step 6: Final answer
    x = 191,671.30

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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.