Home / 305,612.15-458,314.43-105,885.91

Finding the Fourth Proportional to 305,612.15, 458,314.43 and 105,885.91

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Solution

The fourth proportional to 305,612.15, 458,314.43 and 105,885.91 is: 158,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,612.15 : 458,314.43 = 105,885.91 : x
  2. Step 2: Convert to fraction form
    305,612.15/458,314.43 = 105,885.91/x
  3. Step 3: Cross multiply
    305,612.15x = 458,314.43 × 105,885.91
  4. Step 4: Simplify right side
    305,612.15x = 48,529,040,821.56
  5. Step 5: Solve for x
    x = 48,529,040,821.56/305,612.15
  6. Step 6: Final answer
    x = 158,792.90

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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.