Home / 290,812-401,165.04-195,154.24

Finding the Fourth Proportional to 290,812, 401,165.04 and 195,154.24

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Solution

The fourth proportional to 290,812, 401,165.04 and 195,154.24 is: 269,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,812 : 401,165.04 = 195,154.24 : x
  2. Step 2: Convert to fraction form
    290,812/401,165.04 = 195,154.24/x
  3. Step 3: Cross multiply
    290,812x = 401,165.04 × 195,154.24
  4. Step 4: Simplify right side
    290,812x = 78,289,058,495.77
  5. Step 5: Solve for x
    x = 78,289,058,495.77/290,812
  6. Step 6: Final answer
    x = 269,208.49

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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.