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Finding the Fourth Proportional to 242,675.69, 334,892.72 and 135,243.29

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Solution

The fourth proportional to 242,675.69, 334,892.72 and 135,243.29 is: 186,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,675.69 : 334,892.72 = 135,243.29 : x
  2. Step 2: Convert to fraction form
    242,675.69/334,892.72 = 135,243.29/x
  3. Step 3: Cross multiply
    242,675.69x = 334,892.72 × 135,243.29
  4. Step 4: Simplify right side
    242,675.69x = 45,291,992,573.63
  5. Step 5: Solve for x
    x = 45,291,992,573.63/242,675.69
  6. Step 6: Final answer
    x = 186,635.89

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1.5x scale

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.