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Finding the Fourth Proportional to 274,271.54, 378,492.01 and 153,411.44

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Solution

The fourth proportional to 274,271.54, 378,492.01 and 153,411.44 is: 211,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,271.54 : 378,492.01 = 153,411.44 : x
  2. Step 2: Convert to fraction form
    274,271.54/378,492.01 = 153,411.44/x
  3. Step 3: Cross multiply
    274,271.54x = 378,492.01 × 153,411.44
  4. Step 4: Simplify right side
    274,271.54x = 58,065,002,006.61
  5. Step 5: Solve for x
    x = 58,065,002,006.61/274,271.54
  6. Step 6: Final answer
    x = 211,706.26

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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.