Home / 253,341.19-349,610.66-138,620.59

Finding the Fourth Proportional to 253,341.19, 349,610.66 and 138,620.59

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Solution

The fourth proportional to 253,341.19, 349,610.66 and 138,620.59 is: 191,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,341.19 : 349,610.66 = 138,620.59 : x
  2. Step 2: Convert to fraction form
    253,341.19/349,610.66 = 138,620.59/x
  3. Step 3: Cross multiply
    253,341.19x = 349,610.66 × 138,620.59
  4. Step 4: Simplify right side
    253,341.19x = 48,463,234,912.19
  5. Step 5: Solve for x
    x = 48,463,234,912.19/253,341.19
  6. Step 6: Final answer
    x = 191,296.31

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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.