Home / 319,090.46-440,336.71-173,899.97

Finding the Fourth Proportional to 319,090.46, 440,336.71 and 173,899.97

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Solution

The fourth proportional to 319,090.46, 440,336.71 and 173,899.97 is: 239,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,090.46 : 440,336.71 = 173,899.97 : x
  2. Step 2: Convert to fraction form
    319,090.46/440,336.71 = 173,899.97/x
  3. Step 3: Cross multiply
    319,090.46x = 440,336.71 × 173,899.97
  4. Step 4: Simplify right side
    319,090.46x = 76,574,542,053.39
  5. Step 5: Solve for x
    x = 76,574,542,053.39/319,090.46
  6. Step 6: Final answer
    x = 239,977.54

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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.