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Finding the Fourth Proportional to 269,721.72, 404,602.08 and 103,509.72

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Solution

The fourth proportional to 269,721.72, 404,602.08 and 103,509.72 is: 155,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,721.72 : 404,602.08 = 103,509.72 : x
  2. Step 2: Convert to fraction form
    269,721.72/404,602.08 = 103,509.72/x
  3. Step 3: Cross multiply
    269,721.72x = 404,602.08 × 103,509.72
  4. Step 4: Simplify right side
    269,721.72x = 41,880,248,012.22
  5. Step 5: Solve for x
    x = 41,880,248,012.22/269,721.72
  6. Step 6: Final answer
    x = 155,272.06

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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.