Home / 384,221.40-530,566.78-239,276.07

Finding the Fourth Proportional to 384,221.40, 530,566.78 and 239,276.07

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Solution

The fourth proportional to 384,221.40, 530,566.78 and 239,276.07 is: 330,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,221.40 : 530,566.78 = 239,276.07 : x
  2. Step 2: Convert to fraction form
    384,221.40/530,566.78 = 239,276.07/x
  3. Step 3: Cross multiply
    384,221.40x = 530,566.78 × 239,276.07
  4. Step 4: Simplify right side
    384,221.40x = 126,951,932,794.57
  5. Step 5: Solve for x
    x = 126,951,932,794.57/384,221.40
  6. Step 6: Final answer
    x = 330,413.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.