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Finding the Fourth Proportional to 219,141, 302,414.85 and 118,539

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Solution

The fourth proportional to 219,141, 302,414.85 and 118,539 is: 163,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,141 : 302,414.85 = 118,539 : x
  2. Step 2: Convert to fraction form
    219,141/302,414.85 = 118,539/x
  3. Step 3: Cross multiply
    219,141x = 302,414.85 × 118,539
  4. Step 4: Simplify right side
    219,141x = 35,847,953,904.15
  5. Step 5: Solve for x
    x = 35,847,953,904.15/219,141
  6. Step 6: Final answer
    x = 163,583.97

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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.