Home / 319,997.03-441,356.45-223,205.85

Finding the Fourth Proportional to 319,997.03, 441,356.45 and 223,205.85

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Solution

The fourth proportional to 319,997.03, 441,356.45 and 223,205.85 is: 307,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,997.03 : 441,356.45 = 223,205.85 : x
  2. Step 2: Convert to fraction form
    319,997.03/441,356.45 = 223,205.85/x
  3. Step 3: Cross multiply
    319,997.03x = 441,356.45 × 223,205.85
  4. Step 4: Simplify right side
    319,997.03x = 98,513,340,459.20
  5. Step 5: Solve for x
    x = 98,513,340,459.20/319,997.03
  6. Step 6: Final answer
    x = 307,857.05

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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.