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Finding the Fourth Proportional to 352,439.55, 486,353.54 and 191,291.16

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Solution

The fourth proportional to 352,439.55, 486,353.54 and 191,291.16 is: 263,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,439.55 : 486,353.54 = 191,291.16 : x
  2. Step 2: Convert to fraction form
    352,439.55/486,353.54 = 191,291.16/x
  3. Step 3: Cross multiply
    352,439.55x = 486,353.54 × 191,291.16
  4. Step 4: Simplify right side
    352,439.55x = 93,035,132,836.71
  5. Step 5: Solve for x
    x = 93,035,132,836.71/352,439.55
  6. Step 6: Final answer
    x = 263,974.73

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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.