Home / 211,142.27-291,376.38-115,652.39

Finding the Fourth Proportional to 211,142.27, 291,376.38 and 115,652.39

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Solution

The fourth proportional to 211,142.27, 291,376.38 and 115,652.39 is: 159,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,142.27 : 291,376.38 = 115,652.39 : x
  2. Step 2: Convert to fraction form
    211,142.27/291,376.38 = 115,652.39/x
  3. Step 3: Cross multiply
    211,142.27x = 291,376.38 × 115,652.39
  4. Step 4: Simplify right side
    211,142.27x = 33,698,373,279.67
  5. Step 5: Solve for x
    x = 33,698,373,279.67/211,142.27
  6. Step 6: Final answer
    x = 159,600.32

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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.