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Finding the Fourth Proportional to 266,589.79, 367,894.64 and 145,732.52

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Solution

The fourth proportional to 266,589.79, 367,894.64 and 145,732.52 is: 201,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,589.79 : 367,894.64 = 145,732.52 : x
  2. Step 2: Convert to fraction form
    266,589.79/367,894.64 = 145,732.52/x
  3. Step 3: Cross multiply
    266,589.79x = 367,894.64 × 145,732.52
  4. Step 4: Simplify right side
    266,589.79x = 53,614,212,981.69
  5. Step 5: Solve for x
    x = 53,614,212,981.69/266,589.79
  6. Step 6: Final answer
    x = 201,111.28

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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.