Home / 211,476.08-291,836.40-120,860.16

Finding the Fourth Proportional to 211,476.08, 291,836.40 and 120,860.16

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Solution

The fourth proportional to 211,476.08, 291,836.40 and 120,860.16 is: 166,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,476.08 : 291,836.40 = 120,860.16 : x
  2. Step 2: Convert to fraction form
    211,476.08/291,836.40 = 120,860.16/x
  3. Step 3: Cross multiply
    211,476.08x = 291,836.40 × 120,860.16
  4. Step 4: Simplify right side
    211,476.08x = 35,271,393,997.82
  5. Step 5: Solve for x
    x = 35,271,393,997.82/211,476.08
  6. Step 6: Final answer
    x = 166,786.68

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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.