Home / 290,550.36-400,937.94-163,247.16

Finding the Fourth Proportional to 290,550.36, 400,937.94 and 163,247.16

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Solution

The fourth proportional to 290,550.36, 400,937.94 and 163,247.16 is: 225,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,550.36 : 400,937.94 = 163,247.16 : x
  2. Step 2: Convert to fraction form
    290,550.36/400,937.94 = 163,247.16/x
  3. Step 3: Cross multiply
    290,550.36x = 400,937.94 × 163,247.16
  4. Step 4: Simplify right side
    290,550.36x = 65,451,980,041.25
  5. Step 5: Solve for x
    x = 65,451,980,041.25/290,550.36
  6. Step 6: Final answer
    x = 225,268.97

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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.