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Finding the Fourth Proportional to 372,899.70, 559,430.55 and 136,242

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Solution

The fourth proportional to 372,899.70, 559,430.55 and 136,242 is: 204,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,899.70 : 559,430.55 = 136,242 : x
  2. Step 2: Convert to fraction form
    372,899.70/559,430.55 = 136,242/x
  3. Step 3: Cross multiply
    372,899.70x = 559,430.55 × 136,242
  4. Step 4: Simplify right side
    372,899.70x = 76,217,936,993.10
  5. Step 5: Solve for x
    x = 76,217,936,993.10/372,899.70
  6. Step 6: Final answer
    x = 204,392.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.