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Finding the Fourth Proportional to 219,494.92, 302,909.22 and 124,005.64

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Solution

The fourth proportional to 219,494.92, 302,909.22 and 124,005.64 is: 171,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,494.92 : 302,909.22 = 124,005.64 : x
  2. Step 2: Convert to fraction form
    219,494.92/302,909.22 = 124,005.64/x
  3. Step 3: Cross multiply
    219,494.92x = 302,909.22 × 124,005.64
  4. Step 4: Simplify right side
    219,494.92x = 37,562,451,688.00
  5. Step 5: Solve for x
    x = 37,562,451,688.00/219,494.92
  6. Step 6: Final answer
    x = 171,131.30

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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.