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Finding the Fourth Proportional to 301,319.22, 452,013.39 and 90,969.78

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Solution

The fourth proportional to 301,319.22, 452,013.39 and 90,969.78 is: 136,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,319.22 : 452,013.39 = 90,969.78 : x
  2. Step 2: Convert to fraction form
    301,319.22/452,013.39 = 90,969.78/x
  3. Step 3: Cross multiply
    301,319.22x = 452,013.39 × 90,969.78
  4. Step 4: Simplify right side
    301,319.22x = 41,119,558,645.35
  5. Step 5: Solve for x
    x = 41,119,558,645.35/301,319.22
  6. Step 6: Final answer
    x = 136,465.10

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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.