Home / 319,071.77-440,313.37-173,878.85

Finding the Fourth Proportional to 319,071.77, 440,313.37 and 173,878.85

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Solution

The fourth proportional to 319,071.77, 440,313.37 and 173,878.85 is: 239,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,071.77 : 440,313.37 = 173,878.85 : x
  2. Step 2: Convert to fraction form
    319,071.77/440,313.37 = 173,878.85/x
  3. Step 3: Cross multiply
    319,071.77x = 440,313.37 × 173,878.85
  4. Step 4: Simplify right side
    319,071.77x = 76,561,182,415.22
  5. Step 5: Solve for x
    x = 76,561,182,415.22/319,071.77
  6. Step 6: Final answer
    x = 239,949.72

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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.