Home / 305,517.42-458,166.78-105,784.18

Finding the Fourth Proportional to 305,517.42, 458,166.78 and 105,784.18

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Solution

The fourth proportional to 305,517.42, 458,166.78 and 105,784.18 is: 158,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,517.42 : 458,166.78 = 105,784.18 : x
  2. Step 2: Convert to fraction form
    305,517.42/458,166.78 = 105,784.18/x
  3. Step 3: Cross multiply
    305,517.42x = 458,166.78 × 105,784.18
  4. Step 4: Simplify right side
    305,517.42x = 48,466,795,980.12
  5. Step 5: Solve for x
    x = 48,466,795,980.12/305,517.42
  6. Step 6: Final answer
    x = 158,638.40

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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.