Home / 285,081.27-427,280.64-133,073.83

Finding the Fourth Proportional to 285,081.27, 427,280.64 and 133,073.83

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Solution

The fourth proportional to 285,081.27, 427,280.64 and 133,073.83 is: 199,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,081.27 : 427,280.64 = 133,073.83 : x
  2. Step 2: Convert to fraction form
    285,081.27/427,280.64 = 133,073.83/x
  3. Step 3: Cross multiply
    285,081.27x = 427,280.64 × 133,073.83
  4. Step 4: Simplify right side
    285,081.27x = 56,859,870,584.28
  5. Step 5: Solve for x
    x = 56,859,870,584.28/285,081.27
  6. Step 6: Final answer
    x = 199,451.45

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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.