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Finding the Fourth Proportional to 242,522.16, 334,665.72 and 135,086.64

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Solution

The fourth proportional to 242,522.16, 334,665.72 and 135,086.64 is: 186,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,522.16 : 334,665.72 = 135,086.64 : x
  2. Step 2: Convert to fraction form
    242,522.16/334,665.72 = 135,086.64/x
  3. Step 3: Cross multiply
    242,522.16x = 334,665.72 × 135,086.64
  4. Step 4: Simplify right side
    242,522.16x = 45,208,867,637.98
  5. Step 5: Solve for x
    x = 45,208,867,637.98/242,522.16
  6. Step 6: Final answer
    x = 186,411.29

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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.