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Finding the Fourth Proportional to 242,999.95, 335,339.43 and 135,563.57

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Solution

The fourth proportional to 242,999.95, 335,339.43 and 135,563.57 is: 187,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,999.95 : 335,339.43 = 135,563.57 : x
  2. Step 2: Convert to fraction form
    242,999.95/335,339.43 = 135,563.57/x
  3. Step 3: Cross multiply
    242,999.95x = 335,339.43 × 135,563.57
  4. Step 4: Simplify right side
    242,999.95x = 45,459,811,469.82
  5. Step 5: Solve for x
    x = 45,459,811,469.82/242,999.95
  6. Step 6: Final answer
    x = 187,077.45

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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.