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Finding the Fourth Proportional to 202,985.36, 280,026.24 and 131,388.36

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Solution

The fourth proportional to 202,985.36, 280,026.24 and 131,388.36 is: 181,255.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,985.36 : 280,026.24 = 131,388.36 : x
  2. Step 2: Convert to fraction form
    202,985.36/280,026.24 = 131,388.36/x
  3. Step 3: Cross multiply
    202,985.36x = 280,026.24 × 131,388.36
  4. Step 4: Simplify right side
    202,985.36x = 36,792,188,430.57
  5. Step 5: Solve for x
    x = 36,792,188,430.57/202,985.36
  6. Step 6: Final answer
    x = 181,255.38

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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.