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Finding the Fourth Proportional to 286,871.01, 395,871.46 and 159,554.80

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Solution

The fourth proportional to 286,871.01, 395,871.46 and 159,554.80 is: 220,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,871.01 : 395,871.46 = 159,554.80 : x
  2. Step 2: Convert to fraction form
    286,871.01/395,871.46 = 159,554.80/x
  3. Step 3: Cross multiply
    286,871.01x = 395,871.46 × 159,554.80
  4. Step 4: Simplify right side
    286,871.01x = 63,163,191,626.01
  5. Step 5: Solve for x
    x = 63,163,191,626.01/286,871.01
  6. Step 6: Final answer
    x = 220,179.77

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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.