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Finding the Fourth Proportional to 242,915.69, 335,224.24 and 135,492.68

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Solution

The fourth proportional to 242,915.69, 335,224.24 and 135,492.68 is: 186,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,915.69 : 335,224.24 = 135,492.68 : x
  2. Step 2: Convert to fraction form
    242,915.69/335,224.24 = 135,492.68/x
  3. Step 3: Cross multiply
    242,915.69x = 335,224.24 × 135,492.68
  4. Step 4: Simplify right side
    242,915.69x = 45,420,431,177.89
  5. Step 5: Solve for x
    x = 45,420,431,177.89/242,915.69
  6. Step 6: Final answer
    x = 186,980.23

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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.