Home / 268,776.18-403,222.58-81,782.82

Finding the Fourth Proportional to 268,776.18, 403,222.58 and 81,782.82

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Solution

The fourth proportional to 268,776.18, 403,222.58 and 81,782.82 is: 122,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,776.18 : 403,222.58 = 81,782.82 : x
  2. Step 2: Convert to fraction form
    268,776.18/403,222.58 = 81,782.82/x
  3. Step 3: Cross multiply
    268,776.18x = 403,222.58 × 81,782.82
  4. Step 4: Simplify right side
    268,776.18x = 32,976,679,271.16
  5. Step 5: Solve for x
    x = 32,976,679,271.16/268,776.18
  6. Step 6: Final answer
    x = 122,691.97

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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.