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Finding the Fourth Proportional to 472,252.22, 708,190.40 and 172,664.54

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Solution

The fourth proportional to 472,252.22, 708,190.40 and 172,664.54 is: 258,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,252.22 : 708,190.40 = 172,664.54 : x
  2. Step 2: Convert to fraction form
    472,252.22/708,190.40 = 172,664.54/x
  3. Step 3: Cross multiply
    472,252.22x = 708,190.40 × 172,664.54
  4. Step 4: Simplify right side
    472,252.22x = 122,279,369,648.42
  5. Step 5: Solve for x
    x = 122,279,369,648.42/472,252.22
  6. Step 6: Final answer
    x = 258,928.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.