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Finding the Fourth Proportional to 219,113.88, 302,377.17 and 118,511.88

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Solution

The fourth proportional to 219,113.88, 302,377.17 and 118,511.88 is: 163,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,113.88 : 302,377.17 = 118,511.88 : x
  2. Step 2: Convert to fraction form
    219,113.88/302,377.17 = 118,511.88/x
  3. Step 3: Cross multiply
    219,113.88x = 302,377.17 × 118,511.88
  4. Step 4: Simplify right side
    219,113.88x = 35,835,286,885.78
  5. Step 5: Solve for x
    x = 35,835,286,885.78/219,113.88
  6. Step 6: Final answer
    x = 163,546.40

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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.