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Finding the Fourth Proportional to 312,267.42, 430,929.27 and 169,027.02

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Solution

The fourth proportional to 312,267.42, 430,929.27 and 169,027.02 is: 233,257.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,267.42 : 430,929.27 = 169,027.02 : x
  2. Step 2: Convert to fraction form
    312,267.42/430,929.27 = 169,027.02/x
  3. Step 3: Cross multiply
    312,267.42x = 430,929.27 × 169,027.02
  4. Step 4: Simplify right side
    312,267.42x = 72,838,690,338.88
  5. Step 5: Solve for x
    x = 72,838,690,338.88/312,267.42
  6. Step 6: Final answer
    x = 233,257.41

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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.