Home / 305,530.76-458,019.12-165,125.36

Finding the Fourth Proportional to 305,530.76, 458,019.12 and 165,125.36

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Solution

The fourth proportional to 305,530.76, 458,019.12 and 165,125.36 is: 247,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,530.76 : 458,019.12 = 165,125.36 : x
  2. Step 2: Convert to fraction form
    305,530.76/458,019.12 = 165,125.36/x
  3. Step 3: Cross multiply
    305,530.76x = 458,019.12 × 165,125.36
  4. Step 4: Simplify right side
    305,530.76x = 75,630,572,076.88
  5. Step 5: Solve for x
    x = 75,630,572,076.88/305,530.76
  6. Step 6: Final answer
    x = 247,538.32

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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.