Home / 266,215.16-367,391.80-145,367.66

Finding the Fourth Proportional to 266,215.16, 367,391.80 and 145,367.66

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Solution

The fourth proportional to 266,215.16, 367,391.80 and 145,367.66 is: 200,615.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,215.16 : 367,391.80 = 145,367.66 : x
  2. Step 2: Convert to fraction form
    266,215.16/367,391.80 = 145,367.66/x
  3. Step 3: Cross multiply
    266,215.16x = 367,391.80 × 145,367.66
  4. Step 4: Simplify right side
    266,215.16x = 53,406,887,369.38
  5. Step 5: Solve for x
    x = 53,406,887,369.38/266,215.16
  6. Step 6: Final answer
    x = 200,615.50

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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.