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Finding the Fourth Proportional to 219,712.68, 303,191.64 and 124,213.68

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Solution

The fourth proportional to 219,712.68, 303,191.64 and 124,213.68 is: 171,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,712.68 : 303,191.64 = 124,213.68 : x
  2. Step 2: Convert to fraction form
    219,712.68/303,191.64 = 124,213.68/x
  3. Step 3: Cross multiply
    219,712.68x = 303,191.64 × 124,213.68
  4. Step 4: Simplify right side
    219,712.68x = 37,660,549,349.64
  5. Step 5: Solve for x
    x = 37,660,549,349.64/219,712.68
  6. Step 6: Final answer
    x = 171,408.17

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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.