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Finding the Fourth Proportional to 242,469.99, 334,618.95 and 135,040

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Solution

The fourth proportional to 242,469.99, 334,618.95 and 135,040 is: 186,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,469.99 : 334,618.95 = 135,040 : x
  2. Step 2: Convert to fraction form
    242,469.99/334,618.95 = 135,040/x
  3. Step 3: Cross multiply
    242,469.99x = 334,618.95 × 135,040
  4. Step 4: Simplify right side
    242,469.99x = 45,186,943,008
  5. Step 5: Solve for x
    x = 45,186,943,008/242,469.99
  6. Step 6: Final answer
    x = 186,360.97

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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.