Home / 221,217.10-305,241.87-124,395.88

Finding the Fourth Proportional to 221,217.10, 305,241.87 and 124,395.88

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Solution

The fourth proportional to 221,217.10, 305,241.87 and 124,395.88 is: 171,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,217.10 : 305,241.87 = 124,395.88 : x
  2. Step 2: Convert to fraction form
    221,217.10/305,241.87 = 124,395.88/x
  3. Step 3: Cross multiply
    221,217.10x = 305,241.87 × 124,395.88
  4. Step 4: Simplify right side
    221,217.10x = 37,970,831,307.20
  5. Step 5: Solve for x
    x = 37,970,831,307.20/221,217.10
  6. Step 6: Final answer
    x = 171,645.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.