Home / 282,169.06-389,398.08-154,856.50

Finding the Fourth Proportional to 282,169.06, 389,398.08 and 154,856.50

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Solution

The fourth proportional to 282,169.06, 389,398.08 and 154,856.50 is: 213,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,169.06 : 389,398.08 = 154,856.50 : x
  2. Step 2: Convert to fraction form
    282,169.06/389,398.08 = 154,856.50/x
  3. Step 3: Cross multiply
    282,169.06x = 389,398.08 × 154,856.50
  4. Step 4: Simplify right side
    282,169.06x = 60,300,823,775.52
  5. Step 5: Solve for x
    x = 60,300,823,775.52/282,169.06
  6. Step 6: Final answer
    x = 213,704.59

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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.