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Finding the Fourth Proportional to 242,548.98, 334,697.72 and 139,187.72

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Solution

The fourth proportional to 242,548.98, 334,697.72 and 139,187.72 is: 192,067.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,548.98 : 334,697.72 = 139,187.72 : x
  2. Step 2: Convert to fraction form
    242,548.98/334,697.72 = 139,187.72/x
  3. Step 3: Cross multiply
    242,548.98x = 334,697.72 × 139,187.72
  4. Step 4: Simplify right side
    242,548.98x = 46,585,810,166.57
  5. Step 5: Solve for x
    x = 46,585,810,166.57/242,548.98
  6. Step 6: Final answer
    x = 192,067.64

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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.