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Finding the Fourth Proportional to 286,871.50, 395,882.67 and 159,544.36

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Solution

The fourth proportional to 286,871.50, 395,882.67 and 159,544.36 is: 220,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,871.50 : 395,882.67 = 159,544.36 : x
  2. Step 2: Convert to fraction form
    286,871.50/395,882.67 = 159,544.36/x
  3. Step 3: Cross multiply
    286,871.50x = 395,882.67 × 159,544.36
  4. Step 4: Simplify right side
    286,871.50x = 63,160,847,220.24
  5. Step 5: Solve for x
    x = 63,160,847,220.24/286,871.50
  6. Step 6: Final answer
    x = 220,171.22

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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.