Home / 218,402.73-301,408.17-131,214.49

Finding the Fourth Proportional to 218,402.73, 301,408.17 and 131,214.49

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Solution

The fourth proportional to 218,402.73, 301,408.17 and 131,214.49 is: 181,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,402.73 : 301,408.17 = 131,214.49 : x
  2. Step 2: Convert to fraction form
    218,402.73/301,408.17 = 131,214.49/x
  3. Step 3: Cross multiply
    218,402.73x = 301,408.17 × 131,214.49
  4. Step 4: Simplify right side
    218,402.73x = 39,549,119,946.61
  5. Step 5: Solve for x
    x = 39,549,119,946.61/218,402.73
  6. Step 6: Final answer
    x = 181,083.45

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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.