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Finding the Fourth Proportional to 252,230.51, 378,347.13 and 74,739.06

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Solution

The fourth proportional to 252,230.51, 378,347.13 and 74,739.06 is: 112,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,230.51 : 378,347.13 = 74,739.06 : x
  2. Step 2: Convert to fraction form
    252,230.51/378,347.13 = 74,739.06/x
  3. Step 3: Cross multiply
    252,230.51x = 378,347.13 × 74,739.06
  4. Step 4: Simplify right side
    252,230.51x = 28,277,308,849.90
  5. Step 5: Solve for x
    x = 28,277,308,849.90/252,230.51
  6. Step 6: Final answer
    x = 112,109.00

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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.