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Finding the Fourth Proportional to 269,445,302.70, 404,167,954.05 and 258,863,721.90

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Solution

The fourth proportional to 269,445,302.70, 404,167,954.05 and 258,863,721.90 is: 388,295,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,445,302.70 : 404,167,954.05 = 258,863,721.90 : x
  2. Step 2: Convert to fraction form
    269,445,302.70/404,167,954.05 = 258,863,721.90/x
  3. Step 3: Cross multiply
    269,445,302.70x = 404,167,954.05 × 258,863,721.90
  4. Step 4: Simplify right side
    269,445,302.70x = 104,624,420,858,091,184
  5. Step 5: Solve for x
    x = 104,624,420,858,091,184/269,445,302.70
  6. Step 6: Final answer
    x = 388,295,582.85

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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.