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Finding the Fourth Proportional to 293,291.21, 404,741.87 and 159,155.21

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Solution

The fourth proportional to 293,291.21, 404,741.87 and 159,155.21 is: 219,634.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,291.21 : 404,741.87 = 159,155.21 : x
  2. Step 2: Convert to fraction form
    293,291.21/404,741.87 = 159,155.21/x
  3. Step 3: Cross multiply
    293,291.21x = 404,741.87 × 159,155.21
  4. Step 4: Simplify right side
    293,291.21x = 64,416,778,725.39
  5. Step 5: Solve for x
    x = 64,416,778,725.39/293,291.21
  6. Step 6: Final answer
    x = 219,634.19

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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.