Home / 266,253.21-367,429.12-157,396.78

Finding the Fourth Proportional to 266,253.21, 367,429.12 and 157,396.78

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Solution

The fourth proportional to 266,253.21, 367,429.12 and 157,396.78 is: 217,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,253.21 : 367,429.12 = 157,396.78 : x
  2. Step 2: Convert to fraction form
    266,253.21/367,429.12 = 157,396.78/x
  3. Step 3: Cross multiply
    266,253.21x = 367,429.12 × 157,396.78
  4. Step 4: Simplify right side
    266,253.21x = 57,832,160,825.84
  5. Step 5: Solve for x
    x = 57,832,160,825.84/266,253.21
  6. Step 6: Final answer
    x = 217,207.37

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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.