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Finding the Fourth Proportional to 219,342.06, 302,689.71 and 123,843.06

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Solution

The fourth proportional to 219,342.06, 302,689.71 and 123,843.06 is: 170,902.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,342.06 : 302,689.71 = 123,843.06 : x
  2. Step 2: Convert to fraction form
    219,342.06/302,689.71 = 123,843.06/x
  3. Step 3: Cross multiply
    219,342.06x = 302,689.71 × 123,843.06
  4. Step 4: Simplify right side
    219,342.06x = 37,486,019,916.91
  5. Step 5: Solve for x
    x = 37,486,019,916.91/219,342.06
  6. Step 6: Final answer
    x = 170,902.11

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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.