Home / 305,405.34-458,137.16-94,986.78

Finding the Fourth Proportional to 305,405.34, 458,137.16 and 94,986.78

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Solution

The fourth proportional to 305,405.34, 458,137.16 and 94,986.78 is: 142,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,405.34 : 458,137.16 = 94,986.78 : x
  2. Step 2: Convert to fraction form
    305,405.34/458,137.16 = 94,986.78/x
  3. Step 3: Cross multiply
    305,405.34x = 458,137.16 × 94,986.78
  4. Step 4: Simplify right side
    305,405.34x = 43,516,973,626.74
  5. Step 5: Solve for x
    x = 43,516,973,626.74/305,405.34
  6. Step 6: Final answer
    x = 142,489.24

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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.