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Finding the Fourth Proportional to 306,360.29, 458,753.12 and 187,671.80

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Solution

The fourth proportional to 306,360.29, 458,753.12 and 187,671.80 is: 281,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,360.29 : 458,753.12 = 187,671.80 : x
  2. Step 2: Convert to fraction form
    306,360.29/458,753.12 = 187,671.80/x
  3. Step 3: Cross multiply
    306,360.29x = 458,753.12 × 187,671.80
  4. Step 4: Simplify right side
    306,360.29x = 86,095,023,994.54
  5. Step 5: Solve for x
    x = 86,095,023,994.54/306,360.29
  6. Step 6: Final answer
    x = 281,025.40

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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.