Home / 305,647.16-458,449.05-81,002.60

Finding the Fourth Proportional to 305,647.16, 458,449.05 and 81,002.60

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Solution

The fourth proportional to 305,647.16, 458,449.05 and 81,002.60 is: 121,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,647.16 : 458,449.05 = 81,002.60 : x
  2. Step 2: Convert to fraction form
    305,647.16/458,449.05 = 81,002.60/x
  3. Step 3: Cross multiply
    305,647.16x = 458,449.05 × 81,002.60
  4. Step 4: Simplify right side
    305,647.16x = 37,135,565,017.53
  5. Step 5: Solve for x
    x = 37,135,565,017.53/305,647.16
  6. Step 6: Final answer
    x = 121,498.15

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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.