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Finding the Fourth Proportional to 352,515.26, 486,290.85 and 225,056.90

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Solution

The fourth proportional to 352,515.26, 486,290.85 and 225,056.90 is: 310,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,515.26 : 486,290.85 = 225,056.90 : x
  2. Step 2: Convert to fraction form
    352,515.26/486,290.85 = 225,056.90/x
  3. Step 3: Cross multiply
    352,515.26x = 486,290.85 × 225,056.90
  4. Step 4: Simplify right side
    352,515.26x = 109,443,111,199.37
  5. Step 5: Solve for x
    x = 109,443,111,199.37/352,515.26
  6. Step 6: Final answer
    x = 310,463.47

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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.