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Finding the Fourth Proportional to 352,402.55, 486,315.84 and 191,257.64

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Solution

The fourth proportional to 352,402.55, 486,315.84 and 191,257.64 is: 263,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,402.55 : 486,315.84 = 191,257.64 : x
  2. Step 2: Convert to fraction form
    352,402.55/486,315.84 = 191,257.64/x
  3. Step 3: Cross multiply
    352,402.55x = 486,315.84 × 191,257.64
  4. Step 4: Simplify right side
    352,402.55x = 93,011,617,421.44
  5. Step 5: Solve for x
    x = 93,011,617,421.44/352,402.55
  6. Step 6: Final answer
    x = 263,935.71

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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.