Home / 268,451.19-402,679.21-81,462.69

Finding the Fourth Proportional to 268,451.19, 402,679.21 and 81,462.69

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Solution

The fourth proportional to 268,451.19, 402,679.21 and 81,462.69 is: 122,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,451.19 : 402,679.21 = 81,462.69 : x
  2. Step 2: Convert to fraction form
    268,451.19/402,679.21 = 81,462.69/x
  3. Step 3: Cross multiply
    268,451.19x = 402,679.21 × 81,462.69
  4. Step 4: Simplify right side
    268,451.19x = 32,803,331,653.67
  5. Step 5: Solve for x
    x = 32,803,331,653.67/268,451.19
  6. Step 6: Final answer
    x = 122,194.77

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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.