Home / 266,236.39-367,421.16-145,388.91

Finding the Fourth Proportional to 266,236.39, 367,421.16 and 145,388.91

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Solution

The fourth proportional to 266,236.39, 367,421.16 and 145,388.91 is: 200,644.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,236.39 : 367,421.16 = 145,388.91 : x
  2. Step 2: Convert to fraction form
    266,236.39/367,421.16 = 145,388.91/x
  3. Step 3: Cross multiply
    266,236.39x = 367,421.16 × 145,388.91
  4. Step 4: Simplify right side
    266,236.39x = 53,418,961,963.34
  5. Step 5: Solve for x
    x = 53,418,961,963.34/266,236.39
  6. Step 6: Final answer
    x = 200,644.86

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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.