Home / 290,450.16-400,777.74-163,101.15

Finding the Fourth Proportional to 290,450.16, 400,777.74 and 163,101.15

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Solution

The fourth proportional to 290,450.16, 400,777.74 and 163,101.15 is: 225,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,450.16 : 400,777.74 = 163,101.15 : x
  2. Step 2: Convert to fraction form
    290,450.16/400,777.74 = 163,101.15/x
  3. Step 3: Cross multiply
    290,450.16x = 400,777.74 × 163,101.15
  4. Step 4: Simplify right side
    290,450.16x = 65,367,310,288.40
  5. Step 5: Solve for x
    x = 65,367,310,288.40/290,450.16
  6. Step 6: Final answer
    x = 225,055.17

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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.