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Finding the Fourth Proportional to 211,073.60, 291,277.60 and 115,578.56

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Solution

The fourth proportional to 211,073.60, 291,277.60 and 115,578.56 is: 159,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,073.60 : 291,277.60 = 115,578.56 : x
  2. Step 2: Convert to fraction form
    211,073.60/291,277.60 = 115,578.56/x
  3. Step 3: Cross multiply
    211,073.60x = 291,277.60 × 115,578.56
  4. Step 4: Simplify right side
    211,073.60x = 33,665,445,568.26
  5. Step 5: Solve for x
    x = 33,665,445,568.26/211,073.60
  6. Step 6: Final answer
    x = 159,496.24

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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.