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Finding the Fourth Proportional to 269,442.63, 371,830.68 and 154,728.77

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Solution

The fourth proportional to 269,442.63, 371,830.68 and 154,728.77 is: 213,525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,442.63 : 371,830.68 = 154,728.77 : x
  2. Step 2: Convert to fraction form
    269,442.63/371,830.68 = 154,728.77/x
  3. Step 3: Cross multiply
    269,442.63x = 371,830.68 × 154,728.77
  4. Step 4: Simplify right side
    269,442.63x = 57,532,901,905.51
  5. Step 5: Solve for x
    x = 57,532,901,905.51/269,442.63
  6. Step 6: Final answer
    x = 213,525.61

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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.