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Finding the Fourth Proportional to 266,649.66, 367,981.83 and 145,798.47

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Solution

The fourth proportional to 266,649.66, 367,981.83 and 145,798.47 is: 201,204.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,649.66 : 367,981.83 = 145,798.47 : x
  2. Step 2: Convert to fraction form
    266,649.66/367,981.83 = 145,798.47/x
  3. Step 3: Cross multiply
    266,649.66x = 367,981.83 × 145,798.47
  4. Step 4: Simplify right side
    266,649.66x = 53,651,187,801.80
  5. Step 5: Solve for x
    x = 53,651,187,801.80/266,649.66
  6. Step 6: Final answer
    x = 201,204.79

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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.