Home / 211,194.72-291,448.96-114,398.78

Finding the Fourth Proportional to 211,194.72, 291,448.96 and 114,398.78

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Solution

The fourth proportional to 211,194.72, 291,448.96 and 114,398.78 is: 157,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,194.72 : 291,448.96 = 114,398.78 : x
  2. Step 2: Convert to fraction form
    211,194.72/291,448.96 = 114,398.78/x
  3. Step 3: Cross multiply
    211,194.72x = 291,448.96 × 114,398.78
  4. Step 4: Simplify right side
    211,194.72x = 33,341,405,674.17
  5. Step 5: Solve for x
    x = 33,341,405,674.17/211,194.72
  6. Step 6: Final answer
    x = 157,870.45

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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.