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Finding the Fourth Proportional to 272,810.81, 376,497.84 and 165,385.37

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Solution

The fourth proportional to 272,810.81, 376,497.84 and 165,385.37 is: 228,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,810.81 : 376,497.84 = 165,385.37 : x
  2. Step 2: Convert to fraction form
    272,810.81/376,497.84 = 165,385.37/x
  3. Step 3: Cross multiply
    272,810.81x = 376,497.84 × 165,385.37
  4. Step 4: Simplify right side
    272,810.81x = 62,267,232,690.11
  5. Step 5: Solve for x
    x = 62,267,232,690.11/272,810.81
  6. Step 6: Final answer
    x = 228,243.28

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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.