Home / 266,939.20-400,408.80-245,166.40

Finding the Fourth Proportional to 266,939.20, 400,408.80 and 245,166.40

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Solution

The fourth proportional to 266,939.20, 400,408.80 and 245,166.40 is: 367,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,939.20 : 400,408.80 = 245,166.40 : x
  2. Step 2: Convert to fraction form
    266,939.20/400,408.80 = 245,166.40/x
  3. Step 3: Cross multiply
    266,939.20x = 400,408.80 × 245,166.40
  4. Step 4: Simplify right side
    266,939.20x = 98,166,784,024.32
  5. Step 5: Solve for x
    x = 98,166,784,024.32/266,939.20
  6. Step 6: Final answer
    x = 367,749.60

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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.