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Finding the Fourth Proportional to 242,999.08, 335,338.98 and 142,397

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Solution

The fourth proportional to 242,999.08, 335,338.98 and 142,397 is: 196,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,999.08 : 335,338.98 = 142,397 : x
  2. Step 2: Convert to fraction form
    242,999.08/335,338.98 = 142,397/x
  3. Step 3: Cross multiply
    242,999.08x = 335,338.98 × 142,397
  4. Step 4: Simplify right side
    242,999.08x = 47,751,264,735.06
  5. Step 5: Solve for x
    x = 47,751,264,735.06/242,999.08
  6. Step 6: Final answer
    x = 196,508.01

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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.