Home / 290,729.20-401,193.12-169,881.52

Finding the Fourth Proportional to 290,729.20, 401,193.12 and 169,881.52

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Solution

The fourth proportional to 290,729.20, 401,193.12 and 169,881.52 is: 234,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,729.20 : 401,193.12 = 169,881.52 : x
  2. Step 2: Convert to fraction form
    290,729.20/401,193.12 = 169,881.52/x
  3. Step 3: Cross multiply
    290,729.20x = 401,193.12 × 169,881.52
  4. Step 4: Simplify right side
    290,729.20x = 68,155,297,039.14
  5. Step 5: Solve for x
    x = 68,155,297,039.14/290,729.20
  6. Step 6: Final answer
    x = 234,428.80

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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.