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Finding the Fourth Proportional to 306,960.90, 458,370 and 250,910.52

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Solution

The fourth proportional to 306,960.90, 458,370 and 250,910.52 is: 374,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,960.90 : 458,370 = 250,910.52 : x
  2. Step 2: Convert to fraction form
    306,960.90/458,370 = 250,910.52/x
  3. Step 3: Cross multiply
    306,960.90x = 458,370 × 250,910.52
  4. Step 4: Simplify right side
    306,960.90x = 115,009,855,052.40
  5. Step 5: Solve for x
    x = 115,009,855,052.40/306,960.90
  6. Step 6: Final answer
    x = 374,672.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.