Home / 307,217.90-423,787.05-192,297.02

Finding the Fourth Proportional to 307,217.90, 423,787.05 and 192,297.02

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Solution

The fourth proportional to 307,217.90, 423,787.05 and 192,297.02 is: 265,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,217.90 : 423,787.05 = 192,297.02 : x
  2. Step 2: Convert to fraction form
    307,217.90/423,787.05 = 192,297.02/x
  3. Step 3: Cross multiply
    307,217.90x = 423,787.05 × 192,297.02
  4. Step 4: Simplify right side
    307,217.90x = 81,492,987,889.06
  5. Step 5: Solve for x
    x = 81,492,987,889.06/307,217.90
  6. Step 6: Final answer
    x = 265,261.20

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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.