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Finding the Fourth Proportional to 242,999.70, 335,339.09 and 135,563.32

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Solution

The fourth proportional to 242,999.70, 335,339.09 and 135,563.32 is: 187,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,999.70 : 335,339.09 = 135,563.32 : x
  2. Step 2: Convert to fraction form
    242,999.70/335,339.09 = 135,563.32/x
  3. Step 3: Cross multiply
    242,999.70x = 335,339.09 × 135,563.32
  4. Step 4: Simplify right side
    242,999.70x = 45,459,680,615.90
  5. Step 5: Solve for x
    x = 45,459,680,615.90/242,999.70
  6. Step 6: Final answer
    x = 187,077.11

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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.