Home / 319,504.32-440,992.68-192,155.28

Finding the Fourth Proportional to 319,504.32, 440,992.68 and 192,155.28

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Solution

The fourth proportional to 319,504.32, 440,992.68 and 192,155.28 is: 265,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,504.32 : 440,992.68 = 192,155.28 : x
  2. Step 2: Convert to fraction form
    319,504.32/440,992.68 = 192,155.28/x
  3. Step 3: Cross multiply
    319,504.32x = 440,992.68 × 192,155.28
  4. Step 4: Simplify right side
    319,504.32x = 84,739,071,903.35
  5. Step 5: Solve for x
    x = 84,739,071,903.35/319,504.32
  6. Step 6: Final answer
    x = 265,220.43

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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.