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Finding the Fourth Proportional to 426,462.58, 640,002.52 and 166,838.46

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Solution

The fourth proportional to 426,462.58, 640,002.52 and 166,838.46 is: 250,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,462.58 : 640,002.52 = 166,838.46 : x
  2. Step 2: Convert to fraction form
    426,462.58/640,002.52 = 166,838.46/x
  3. Step 3: Cross multiply
    426,462.58x = 640,002.52 × 166,838.46
  4. Step 4: Simplify right side
    426,462.58x = 106,777,034,832.92
  5. Step 5: Solve for x
    x = 106,777,034,832.92/426,462.58
  6. Step 6: Final answer
    x = 250,378.44

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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.