Home / 418,329.09-627,381.55-181,615.50

Finding the Fourth Proportional to 418,329.09, 627,381.55 and 181,615.50

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Solution

The fourth proportional to 418,329.09, 627,381.55 and 181,615.50 is: 272,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,329.09 : 627,381.55 = 181,615.50 : x
  2. Step 2: Convert to fraction form
    418,329.09/627,381.55 = 181,615.50/x
  3. Step 3: Cross multiply
    418,329.09x = 627,381.55 × 181,615.50
  4. Step 4: Simplify right side
    418,329.09x = 113,942,214,121.04
  5. Step 5: Solve for x
    x = 113,942,214,121.04/418,329.09
  6. Step 6: Final answer
    x = 272,374.59

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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.