Home / 253,190.25-349,388.40-138,446.10

Finding the Fourth Proportional to 253,190.25, 349,388.40 and 138,446.10

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Solution

The fourth proportional to 253,190.25, 349,388.40 and 138,446.10 is: 191,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,190.25 : 349,388.40 = 138,446.10 : x
  2. Step 2: Convert to fraction form
    253,190.25/349,388.40 = 138,446.10/x
  3. Step 3: Cross multiply
    253,190.25x = 349,388.40 × 138,446.10
  4. Step 4: Simplify right side
    253,190.25x = 48,371,461,365.24
  5. Step 5: Solve for x
    x = 48,371,461,365.24/253,190.25
  6. Step 6: Final answer
    x = 191,047.88

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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.