Home / 403,177.12-556,372.62-221,888.95

Finding the Fourth Proportional to 403,177.12, 556,372.62 and 221,888.95

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Solution

The fourth proportional to 403,177.12, 556,372.62 and 221,888.95 is: 306,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,177.12 : 556,372.62 = 221,888.95 : x
  2. Step 2: Convert to fraction form
    403,177.12/556,372.62 = 221,888.95/x
  3. Step 3: Cross multiply
    403,177.12x = 556,372.62 × 221,888.95
  4. Step 4: Simplify right side
    403,177.12x = 123,452,935,069.62
  5. Step 5: Solve for x
    x = 123,452,935,069.62/403,177.12
  6. Step 6: Final answer
    x = 306,200.25

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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.