Home / 242,890.40-363,898.20-149,286.80

Finding the Fourth Proportional to 242,890.40, 363,898.20 and 149,286.80

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Solution

The fourth proportional to 242,890.40, 363,898.20 and 149,286.80 is: 223,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,890.40 : 363,898.20 = 149,286.80 : x
  2. Step 2: Convert to fraction form
    242,890.40/363,898.20 = 149,286.80/x
  3. Step 3: Cross multiply
    242,890.40x = 363,898.20 × 149,286.80
  4. Step 4: Simplify right side
    242,890.40x = 54,325,197,803.76
  5. Step 5: Solve for x
    x = 54,325,197,803.76/242,890.40
  6. Step 6: Final answer
    x = 223,661.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.