Home / 268,215.22-402,072.72-90,598.02

Finding the Fourth Proportional to 268,215.22, 402,072.72 and 90,598.02

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Solution

The fourth proportional to 268,215.22, 402,072.72 and 90,598.02 is: 135,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,215.22 : 402,072.72 = 90,598.02 : x
  2. Step 2: Convert to fraction form
    268,215.22/402,072.72 = 90,598.02/x
  3. Step 3: Cross multiply
    268,215.22x = 402,072.72 × 90,598.02
  4. Step 4: Simplify right side
    268,215.22x = 36,426,992,328.01
  5. Step 5: Solve for x
    x = 36,426,992,328.01/268,215.22
  6. Step 6: Final answer
    x = 135,812.55

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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.