Home / 211,029.94-291,209.78-115,518.16

Finding the Fourth Proportional to 211,029.94, 291,209.78 and 115,518.16

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Solution

The fourth proportional to 211,029.94, 291,209.78 and 115,518.16 is: 159,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,029.94 : 291,209.78 = 115,518.16 : x
  2. Step 2: Convert to fraction form
    211,029.94/291,209.78 = 115,518.16/x
  3. Step 3: Cross multiply
    211,029.94x = 291,209.78 × 115,518.16
  4. Step 4: Simplify right side
    211,029.94x = 33,640,015,925.97
  5. Step 5: Solve for x
    x = 33,640,015,925.97/211,029.94
  6. Step 6: Final answer
    x = 159,408.74

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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.