Home / 403,230.03-556,453.05-221,938.08

Finding the Fourth Proportional to 403,230.03, 556,453.05 and 221,938.08

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Solution

The fourth proportional to 403,230.03, 556,453.05 and 221,938.08 is: 306,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,230.03 : 556,453.05 = 221,938.08 : x
  2. Step 2: Convert to fraction form
    403,230.03/556,453.05 = 221,938.08/x
  3. Step 3: Cross multiply
    403,230.03x = 556,453.05 × 221,938.08
  4. Step 4: Simplify right side
    403,230.03x = 123,498,121,527.14
  5. Step 5: Solve for x
    x = 123,498,121,527.14/403,230.03
  6. Step 6: Final answer
    x = 306,272.13

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1.5x scale

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.