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Finding the Fourth Proportional to 274,907.48, 411,661.20 and 181,128.92

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Solution

The fourth proportional to 274,907.48, 411,661.20 and 181,128.92 is: 271,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,907.48 : 411,661.20 = 181,128.92 : x
  2. Step 2: Convert to fraction form
    274,907.48/411,661.20 = 181,128.92/x
  3. Step 3: Cross multiply
    274,907.48x = 411,661.20 × 181,128.92
  4. Step 4: Simplify right side
    274,907.48x = 74,563,748,561.90
  5. Step 5: Solve for x
    x = 74,563,748,561.90/274,907.48
  6. Step 6: Final answer
    x = 271,232.16

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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.