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Finding the Fourth Proportional to 269,044.36, 371,248.72 and 154,317.08

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Solution

The fourth proportional to 269,044.36, 371,248.72 and 154,317.08 is: 212,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,044.36 : 371,248.72 = 154,317.08 : x
  2. Step 2: Convert to fraction form
    269,044.36/371,248.72 = 154,317.08/x
  3. Step 3: Cross multiply
    269,044.36x = 371,248.72 × 154,317.08
  4. Step 4: Simplify right side
    269,044.36x = 57,290,018,424.14
  5. Step 5: Solve for x
    x = 57,290,018,424.14/269,044.36
  6. Step 6: Final answer
    x = 212,938.93

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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.