Home / 290,088.57-400,315.89-161,019.46

Finding the Fourth Proportional to 290,088.57, 400,315.89 and 161,019.46

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Solution

The fourth proportional to 290,088.57, 400,315.89 and 161,019.46 is: 222,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,088.57 : 400,315.89 = 161,019.46 : x
  2. Step 2: Convert to fraction form
    290,088.57/400,315.89 = 161,019.46/x
  3. Step 3: Cross multiply
    290,088.57x = 400,315.89 × 161,019.46
  4. Step 4: Simplify right side
    290,088.57x = 64,458,648,437.22
  5. Step 5: Solve for x
    x = 64,458,648,437.22/290,088.57
  6. Step 6: Final answer
    x = 222,203.34

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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.