Home / 319,081.43-440,332.47-173,887.27

Finding the Fourth Proportional to 319,081.43, 440,332.47 and 173,887.27

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Solution

The fourth proportional to 319,081.43, 440,332.47 and 173,887.27 is: 239,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,081.43 : 440,332.47 = 173,887.27 : x
  2. Step 2: Convert to fraction form
    319,081.43/440,332.47 = 173,887.27/x
  3. Step 3: Cross multiply
    319,081.43x = 440,332.47 × 173,887.27
  4. Step 4: Simplify right side
    319,081.43x = 76,568,209,999.83
  5. Step 5: Solve for x
    x = 76,568,209,999.83/319,081.43
  6. Step 6: Final answer
    x = 239,964.48

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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.