Home / 319,291.32-440,581.50-198,452.28

Finding the Fourth Proportional to 319,291.32, 440,581.50 and 198,452.28

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Solution

The fourth proportional to 319,291.32, 440,581.50 and 198,452.28 is: 273,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,291.32 : 440,581.50 = 198,452.28 : x
  2. Step 2: Convert to fraction form
    319,291.32/440,581.50 = 198,452.28/x
  3. Step 3: Cross multiply
    319,291.32x = 440,581.50 × 198,452.28
  4. Step 4: Simplify right side
    319,291.32x = 87,434,403,200.82
  5. Step 5: Solve for x
    x = 87,434,403,200.82/319,291.32
  6. Step 6: Final answer
    x = 273,838.96

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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.