Home / 403,427.21-605,144.05-137,248.25

Finding the Fourth Proportional to 403,427.21, 605,144.05 and 137,248.25

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Solution

The fourth proportional to 403,427.21, 605,144.05 and 137,248.25 is: 205,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,427.21 : 605,144.05 = 137,248.25 : x
  2. Step 2: Convert to fraction form
    403,427.21/605,144.05 = 137,248.25/x
  3. Step 3: Cross multiply
    403,427.21x = 605,144.05 × 137,248.25
  4. Step 4: Simplify right side
    403,427.21x = 83,054,958,491.57
  5. Step 5: Solve for x
    x = 83,054,958,491.57/403,427.21
  6. Step 6: Final answer
    x = 205,873.47

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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.