Home / 211,309.96-291,579.60-120,660.16

Finding the Fourth Proportional to 211,309.96, 291,579.60 and 120,660.16

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Solution

The fourth proportional to 211,309.96, 291,579.60 and 120,660.16 is: 166,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,309.96 : 291,579.60 = 120,660.16 : x
  2. Step 2: Convert to fraction form
    211,309.96/291,579.60 = 120,660.16/x
  3. Step 3: Cross multiply
    211,309.96x = 291,579.60 × 120,660.16
  4. Step 4: Simplify right side
    211,309.96x = 35,182,041,188.74
  5. Step 5: Solve for x
    x = 35,182,041,188.74/211,309.96
  6. Step 6: Final answer
    x = 166,494.95

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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.