Home / 319,067.10-440,303.85-173,869.74

Finding the Fourth Proportional to 319,067.10, 440,303.85 and 173,869.74

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Solution

The fourth proportional to 319,067.10, 440,303.85 and 173,869.74 is: 239,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,067.10 : 440,303.85 = 173,869.74 : x
  2. Step 2: Convert to fraction form
    319,067.10/440,303.85 = 173,869.74/x
  3. Step 3: Cross multiply
    319,067.10x = 440,303.85 × 173,869.74
  4. Step 4: Simplify right side
    319,067.10x = 76,555,515,920.50
  5. Step 5: Solve for x
    x = 76,555,515,920.50/319,067.10
  6. Step 6: Final answer
    x = 239,935.47

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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.