Home / 253,581.48-349,947.90-138,864.96

Finding the Fourth Proportional to 253,581.48, 349,947.90 and 138,864.96

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Solution

The fourth proportional to 253,581.48, 349,947.90 and 138,864.96 is: 191,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,581.48 : 349,947.90 = 138,864.96 : x
  2. Step 2: Convert to fraction form
    253,581.48/349,947.90 = 138,864.96/x
  3. Step 3: Cross multiply
    253,581.48x = 349,947.90 × 138,864.96
  4. Step 4: Simplify right side
    253,581.48x = 48,595,501,135.58
  5. Step 5: Solve for x
    x = 48,595,501,135.58/253,581.48
  6. Step 6: Final answer
    x = 191,636.63

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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.