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Finding the Fourth Proportional to 219,368.78, 329,080.86 and 75,302.68

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Solution

The fourth proportional to 219,368.78, 329,080.86 and 75,302.68 is: 112,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,368.78 : 329,080.86 = 75,302.68 : x
  2. Step 2: Convert to fraction form
    219,368.78/329,080.86 = 75,302.68/x
  3. Step 3: Cross multiply
    219,368.78x = 329,080.86 × 75,302.68
  4. Step 4: Simplify right side
    219,368.78x = 24,780,669,730.81
  5. Step 5: Solve for x
    x = 24,780,669,730.81/219,368.78
  6. Step 6: Final answer
    x = 112,963.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.