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Finding the Fourth Proportional to 219,327.28, 302,672.10 and 118,725.28

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Solution

The fourth proportional to 219,327.28, 302,672.10 and 118,725.28 is: 163,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,327.28 : 302,672.10 = 118,725.28 : x
  2. Step 2: Convert to fraction form
    219,327.28/302,672.10 = 118,725.28/x
  3. Step 3: Cross multiply
    219,327.28x = 302,672.10 × 118,725.28
  4. Step 4: Simplify right side
    219,327.28x = 35,934,829,820.69
  5. Step 5: Solve for x
    x = 35,934,829,820.69/219,327.28
  6. Step 6: Final answer
    x = 163,841.13

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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.