Home / 268,510.84-402,740.22-81,523.96

Finding the Fourth Proportional to 268,510.84, 402,740.22 and 81,523.96

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Solution

The fourth proportional to 268,510.84, 402,740.22 and 81,523.96 is: 122,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,510.84 : 402,740.22 = 81,523.96 : x
  2. Step 2: Convert to fraction form
    268,510.84/402,740.22 = 81,523.96/x
  3. Step 3: Cross multiply
    268,510.84x = 402,740.22 × 81,523.96
  4. Step 4: Simplify right side
    268,510.84x = 32,832,977,585.67
  5. Step 5: Solve for x
    x = 32,832,977,585.67/268,510.84
  6. Step 6: Final answer
    x = 122,278.03

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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.