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Finding the Fourth Proportional to 352,514.76, 486,290.16 and 225,056.40

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Solution

The fourth proportional to 352,514.76, 486,290.16 and 225,056.40 is: 310,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,514.76 : 486,290.16 = 225,056.40 : x
  2. Step 2: Convert to fraction form
    352,514.76/486,290.16 = 225,056.40/x
  3. Step 3: Cross multiply
    352,514.76x = 486,290.16 × 225,056.40
  4. Step 4: Simplify right side
    352,514.76x = 109,442,712,765.02
  5. Step 5: Solve for x
    x = 109,442,712,765.02/352,514.76
  6. Step 6: Final answer
    x = 310,462.78

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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.