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Finding the Fourth Proportional to 352,415.85, 486,215.50 and 225,165.93

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Solution

The fourth proportional to 352,415.85, 486,215.50 and 225,165.93 is: 310,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,415.85 : 486,215.50 = 225,165.93 : x
  2. Step 2: Convert to fraction form
    352,415.85/486,215.50 = 225,165.93/x
  3. Step 3: Cross multiply
    352,415.85x = 486,215.50 × 225,165.93
  4. Step 4: Simplify right side
    352,415.85x = 109,479,165,237.92
  5. Step 5: Solve for x
    x = 109,479,165,237.92/352,415.85
  6. Step 6: Final answer
    x = 310,653.35

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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.