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Finding the Fourth Proportional to 202,388.76, 279,522.09 and 157,605.48

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Solution

The fourth proportional to 202,388.76, 279,522.09 and 157,605.48 is: 217,671.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,388.76 : 279,522.09 = 157,605.48 : x
  2. Step 2: Convert to fraction form
    202,388.76/279,522.09 = 157,605.48/x
  3. Step 3: Cross multiply
    202,388.76x = 279,522.09 × 157,605.48
  4. Step 4: Simplify right side
    202,388.76x = 44,054,213,165.05
  5. Step 5: Solve for x
    x = 44,054,213,165.05/202,388.76
  6. Step 6: Final answer
    x = 217,671.24

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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.