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Finding the Fourth Proportional to 243,368.04, 335,826 and 135,923.16

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Solution

The fourth proportional to 243,368.04, 335,826 and 135,923.16 is: 187,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,368.04 : 335,826 = 135,923.16 : x
  2. Step 2: Convert to fraction form
    243,368.04/335,826 = 135,923.16/x
  3. Step 3: Cross multiply
    243,368.04x = 335,826 × 135,923.16
  4. Step 4: Simplify right side
    243,368.04x = 45,646,531,130.16
  5. Step 5: Solve for x
    x = 45,646,531,130.16/243,368.04
  6. Step 6: Final answer
    x = 187,561.73

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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.