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Finding the Fourth Proportional to 290,792.03, 436,335.66 and 171,020.97

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Solution

The fourth proportional to 290,792.03, 436,335.66 and 171,020.97 is: 256,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,792.03 : 436,335.66 = 171,020.97 : x
  2. Step 2: Convert to fraction form
    290,792.03/436,335.66 = 171,020.97/x
  3. Step 3: Cross multiply
    290,792.03x = 436,335.66 × 171,020.97
  4. Step 4: Simplify right side
    290,792.03x = 74,622,547,818.79
  5. Step 5: Solve for x
    x = 74,622,547,818.79/290,792.03
  6. Step 6: Final answer
    x = 256,618.27

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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.