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Finding the Fourth Proportional to 357,348.36, 493,371.52 and 221,527.46

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Solution

The fourth proportional to 357,348.36, 493,371.52 and 221,527.46 is: 305,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,348.36 : 493,371.52 = 221,527.46 : x
  2. Step 2: Convert to fraction form
    357,348.36/493,371.52 = 221,527.46/x
  3. Step 3: Cross multiply
    357,348.36x = 493,371.52 × 221,527.46
  4. Step 4: Simplify right side
    357,348.36x = 109,295,339,661.94
  5. Step 5: Solve for x
    x = 109,295,339,661.94/357,348.36
  6. Step 6: Final answer
    x = 305,850.96

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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.