Home / 266,139.48-367,258.47-145,257.30

Finding the Fourth Proportional to 266,139.48, 367,258.47 and 145,257.30

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Solution

The fourth proportional to 266,139.48, 367,258.47 and 145,257.30 is: 200,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,139.48 : 367,258.47 = 145,257.30 : x
  2. Step 2: Convert to fraction form
    266,139.48/367,258.47 = 145,257.30/x
  3. Step 3: Cross multiply
    266,139.48x = 367,258.47 × 145,257.30
  4. Step 4: Simplify right side
    266,139.48x = 53,346,973,754.33
  5. Step 5: Solve for x
    x = 53,346,973,754.33/266,139.48
  6. Step 6: Final answer
    x = 200,447.43

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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.