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Finding the Fourth Proportional to 436,965.28, 655,289.28 and 152,576

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Solution

The fourth proportional to 436,965.28, 655,289.28 and 152,576 is: 228,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,965.28 : 655,289.28 = 152,576 : x
  2. Step 2: Convert to fraction form
    436,965.28/655,289.28 = 152,576/x
  3. Step 3: Cross multiply
    436,965.28x = 655,289.28 × 152,576
  4. Step 4: Simplify right side
    436,965.28x = 99,981,417,185.28
  5. Step 5: Solve for x
    x = 99,981,417,185.28/436,965.28
  6. Step 6: Final answer
    x = 228,808.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.