Home / 211,273.48-291,565.40-120,644.20

Finding the Fourth Proportional to 211,273.48, 291,565.40 and 120,644.20

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Solution

The fourth proportional to 211,273.48, 291,565.40 and 120,644.20 is: 166,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,273.48 : 291,565.40 = 120,644.20 : x
  2. Step 2: Convert to fraction form
    211,273.48/291,565.40 = 120,644.20/x
  3. Step 3: Cross multiply
    211,273.48x = 291,565.40 × 120,644.20
  4. Step 4: Simplify right side
    211,273.48x = 35,175,674,430.68
  5. Step 5: Solve for x
    x = 35,175,674,430.68/211,273.48
  6. Step 6: Final answer
    x = 166,493.56

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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.