Home / 269,214.30-403,821.45-157,021.20

Finding the Fourth Proportional to 269,214.30, 403,821.45 and 157,021.20

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Solution

The fourth proportional to 269,214.30, 403,821.45 and 157,021.20 is: 235,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,214.30 : 403,821.45 = 157,021.20 : x
  2. Step 2: Convert to fraction form
    269,214.30/403,821.45 = 157,021.20/x
  3. Step 3: Cross multiply
    269,214.30x = 403,821.45 × 157,021.20
  4. Step 4: Simplify right side
    269,214.30x = 63,408,528,664.74
  5. Step 5: Solve for x
    x = 63,408,528,664.74/269,214.30
  6. Step 6: Final answer
    x = 235,531.80

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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.