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Finding the Fourth Proportional to 312,049, 430,625.28 and 168,806.98

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Solution

The fourth proportional to 312,049, 430,625.28 and 168,806.98 is: 232,952.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,049 : 430,625.28 = 168,806.98 : x
  2. Step 2: Convert to fraction form
    312,049/430,625.28 = 168,806.98/x
  3. Step 3: Cross multiply
    312,049x = 430,625.28 × 168,806.98
  4. Step 4: Simplify right side
    312,049x = 72,692,553,028.45
  5. Step 5: Solve for x
    x = 72,692,553,028.45/312,049
  6. Step 6: Final answer
    x = 232,952.37

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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.