Home / 268,724.77-403,156.41-192,911.20

Finding the Fourth Proportional to 268,724.77, 403,156.41 and 192,911.20

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Solution

The fourth proportional to 268,724.77, 403,156.41 and 192,911.20 is: 289,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,724.77 : 403,156.41 = 192,911.20 : x
  2. Step 2: Convert to fraction form
    268,724.77/403,156.41 = 192,911.20/x
  3. Step 3: Cross multiply
    268,724.77x = 403,156.41 × 192,911.20
  4. Step 4: Simplify right side
    268,724.77x = 77,773,386,840.79
  5. Step 5: Solve for x
    x = 77,773,386,840.79/268,724.77
  6. Step 6: Final answer
    x = 289,416.52

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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.