Home / 353,241.23-487,264.75-222,209.98

Finding the Fourth Proportional to 353,241.23, 487,264.75 and 222,209.98

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Solution

The fourth proportional to 353,241.23, 487,264.75 and 222,209.98 is: 306,518.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,241.23 : 487,264.75 = 222,209.98 : x
  2. Step 2: Convert to fraction form
    353,241.23/487,264.75 = 222,209.98/x
  3. Step 3: Cross multiply
    353,241.23x = 487,264.75 × 222,209.98
  4. Step 4: Simplify right side
    353,241.23x = 108,275,088,578.52
  5. Step 5: Solve for x
    x = 108,275,088,578.52/353,241.23
  6. Step 6: Final answer
    x = 306,518.83

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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.