Home / 266,538.90-367,813.69-145,679.21

Finding the Fourth Proportional to 266,538.90, 367,813.69 and 145,679.21

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Solution

The fourth proportional to 266,538.90, 367,813.69 and 145,679.21 is: 201,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,538.90 : 367,813.69 = 145,679.21 : x
  2. Step 2: Convert to fraction form
    266,538.90/367,813.69 = 145,679.21/x
  3. Step 3: Cross multiply
    266,538.90x = 367,813.69 × 145,679.21
  4. Step 4: Simplify right side
    266,538.90x = 53,582,805,947.32
  5. Step 5: Solve for x
    x = 53,582,805,947.32/266,538.90
  6. Step 6: Final answer
    x = 201,031.84

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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.