Home / 290,939.58-401,505.66-163,622.16

Finding the Fourth Proportional to 290,939.58, 401,505.66 and 163,622.16

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Solution

The fourth proportional to 290,939.58, 401,505.66 and 163,622.16 is: 225,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,939.58 : 401,505.66 = 163,622.16 : x
  2. Step 2: Convert to fraction form
    290,939.58/401,505.66 = 163,622.16/x
  3. Step 3: Cross multiply
    290,939.58x = 401,505.66 × 163,622.16
  4. Step 4: Simplify right side
    290,939.58x = 65,695,223,341.43
  5. Step 5: Solve for x
    x = 65,695,223,341.43/290,939.58
  6. Step 6: Final answer
    x = 225,803.66

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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.