Home / 419,261.90-628,929.30-134,981.06

Finding the Fourth Proportional to 419,261.90, 628,929.30 and 134,981.06

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Solution

The fourth proportional to 419,261.90, 628,929.30 and 134,981.06 is: 202,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,261.90 : 628,929.30 = 134,981.06 : x
  2. Step 2: Convert to fraction form
    419,261.90/628,929.30 = 134,981.06/x
  3. Step 3: Cross multiply
    419,261.90x = 628,929.30 × 134,981.06
  4. Step 4: Simplify right side
    419,261.90x = 84,893,543,579.06
  5. Step 5: Solve for x
    x = 84,893,543,579.06/419,261.90
  6. Step 6: Final answer
    x = 202,483.33

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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.