Home / 221,789.61-305,750.98-158,016.69

Finding the Fourth Proportional to 221,789.61, 305,750.98 and 158,016.69

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Solution

The fourth proportional to 221,789.61, 305,750.98 and 158,016.69 is: 217,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,789.61 : 305,750.98 = 158,016.69 : x
  2. Step 2: Convert to fraction form
    221,789.61/305,750.98 = 158,016.69/x
  3. Step 3: Cross multiply
    221,789.61x = 305,750.98 × 158,016.69
  4. Step 4: Simplify right side
    221,789.61x = 48,313,756,295.10
  5. Step 5: Solve for x
    x = 48,313,756,295.10/221,789.61
  6. Step 6: Final answer
    x = 217,835.98

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1.5x scale

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.