Home / 231,852.20-319,409.80-217,901.87

Finding the Fourth Proportional to 231,852.20, 319,409.80 and 217,901.87

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Solution

The fourth proportional to 231,852.20, 319,409.80 and 217,901.87 is: 300,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,852.20 : 319,409.80 = 217,901.87 : x
  2. Step 2: Convert to fraction form
    231,852.20/319,409.80 = 217,901.87/x
  3. Step 3: Cross multiply
    231,852.20x = 319,409.80 × 217,901.87
  4. Step 4: Simplify right side
    231,852.20x = 69,599,991,772.31
  5. Step 5: Solve for x
    x = 69,599,991,772.31/231,852.20
  6. Step 6: Final answer
    x = 300,191.21

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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.