Home / 211,209.46-291,477.09-120,580.18

Finding the Fourth Proportional to 211,209.46, 291,477.09 and 120,580.18

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Solution

The fourth proportional to 211,209.46, 291,477.09 and 120,580.18 is: 166,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,209.46 : 291,477.09 = 120,580.18 : x
  2. Step 2: Convert to fraction form
    211,209.46/291,477.09 = 120,580.18/x
  3. Step 3: Cross multiply
    211,209.46x = 291,477.09 × 120,580.18
  4. Step 4: Simplify right side
    211,209.46x = 35,146,359,978.08
  5. Step 5: Solve for x
    x = 35,146,359,978.08/211,209.46
  6. Step 6: Final answer
    x = 166,405.24

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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.