Home / 400,156.48-552,193.32-218,832.40

Finding the Fourth Proportional to 400,156.48, 552,193.32 and 218,832.40

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Solution

The fourth proportional to 400,156.48, 552,193.32 and 218,832.40 is: 301,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156.48 : 552,193.32 = 218,832.40 : x
  2. Step 2: Convert to fraction form
    400,156.48/552,193.32 = 218,832.40/x
  3. Step 3: Cross multiply
    400,156.48x = 552,193.32 × 218,832.40
  4. Step 4: Simplify right side
    400,156.48x = 120,837,789,479.57
  5. Step 5: Solve for x
    x = 120,837,789,479.57/400,156.48
  6. Step 6: Final answer
    x = 301,976.34

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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.