Home / 211,403.28-291,734.46-115,909.74

Finding the Fourth Proportional to 211,403.28, 291,734.46 and 115,909.74

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Solution

The fourth proportional to 211,403.28, 291,734.46 and 115,909.74 is: 159,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,403.28 : 291,734.46 = 115,909.74 : x
  2. Step 2: Convert to fraction form
    211,403.28/291,734.46 = 115,909.74/x
  3. Step 3: Cross multiply
    211,403.28x = 291,734.46 × 115,909.74
  4. Step 4: Simplify right side
    211,403.28x = 33,814,865,407.64
  5. Step 5: Solve for x
    x = 33,814,865,407.64/211,403.28
  6. Step 6: Final answer
    x = 159,954.31

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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.