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Finding the Fourth Proportional to 352,417.60, 486,217.92 and 225,167.68

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Solution

The fourth proportional to 352,417.60, 486,217.92 and 225,167.68 is: 310,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,417.60 : 486,217.92 = 225,167.68 : x
  2. Step 2: Convert to fraction form
    352,417.60/486,217.92 = 225,167.68/x
  3. Step 3: Cross multiply
    352,417.60x = 486,217.92 × 225,167.68
  4. Step 4: Simplify right side
    352,417.60x = 109,480,561,020.83
  5. Step 5: Solve for x
    x = 109,480,561,020.83/352,417.60
  6. Step 6: Final answer
    x = 310,655.77

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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.