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Finding the Fourth Proportional to 219,310.88, 302,649.92 and 118,708.88

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Solution

The fourth proportional to 219,310.88, 302,649.92 and 118,708.88 is: 163,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,310.88 : 302,649.92 = 118,708.88 : x
  2. Step 2: Convert to fraction form
    219,310.88/302,649.92 = 118,708.88/x
  3. Step 3: Cross multiply
    219,310.88x = 302,649.92 × 118,708.88
  4. Step 4: Simplify right side
    219,310.88x = 35,927,231,373.65
  5. Step 5: Solve for x
    x = 35,927,231,373.65/219,310.88
  6. Step 6: Final answer
    x = 163,818.74

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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.