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Finding the Fourth Proportional to 219,107.88, 302,368.89 and 118,505.88

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Solution

The fourth proportional to 219,107.88, 302,368.89 and 118,505.88 is: 163,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,107.88 : 302,368.89 = 118,505.88 : x
  2. Step 2: Convert to fraction form
    219,107.88/302,368.89 = 118,505.88/x
  3. Step 3: Cross multiply
    219,107.88x = 302,368.89 × 118,505.88
  4. Step 4: Simplify right side
    219,107.88x = 35,832,491,394.07
  5. Step 5: Solve for x
    x = 35,832,491,394.07/219,107.88
  6. Step 6: Final answer
    x = 163,538.12

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1.5x scale

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.