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Finding the Fourth Proportional to 352,057.38, 486,105.27 and 216,277.38

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Solution

The fourth proportional to 352,057.38, 486,105.27 and 216,277.38 is: 298,626.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,057.38 : 486,105.27 = 216,277.38 : x
  2. Step 2: Convert to fraction form
    352,057.38/486,105.27 = 216,277.38/x
  3. Step 3: Cross multiply
    352,057.38x = 486,105.27 × 216,277.38
  4. Step 4: Simplify right side
    352,057.38x = 105,133,574,199.79
  5. Step 5: Solve for x
    x = 105,133,574,199.79/352,057.38
  6. Step 6: Final answer
    x = 298,626.25

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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.