Home / 268,480.23-402,718.51-91,112.10

Finding the Fourth Proportional to 268,480.23, 402,718.51 and 91,112.10

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Solution

The fourth proportional to 268,480.23, 402,718.51 and 91,112.10 is: 136,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,480.23 : 402,718.51 = 91,112.10 : x
  2. Step 2: Convert to fraction form
    268,480.23/402,718.51 = 91,112.10/x
  3. Step 3: Cross multiply
    268,480.23x = 402,718.51 × 91,112.10
  4. Step 4: Simplify right side
    268,480.23x = 36,692,529,154.97
  5. Step 5: Solve for x
    x = 36,692,529,154.97/268,480.23
  6. Step 6: Final answer
    x = 136,667.53

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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.