Home / 211,057.40-291,259.14-115,564.04

Finding the Fourth Proportional to 211,057.40, 291,259.14 and 115,564.04

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Solution

The fourth proportional to 211,057.40, 291,259.14 and 115,564.04 is: 159,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,057.40 : 291,259.14 = 115,564.04 : x
  2. Step 2: Convert to fraction form
    211,057.40/291,259.14 = 115,564.04/x
  3. Step 3: Cross multiply
    211,057.40x = 291,259.14 × 115,564.04
  4. Step 4: Simplify right side
    211,057.40x = 33,659,082,905.33
  5. Step 5: Solve for x
    x = 33,659,082,905.33/211,057.40
  6. Step 6: Final answer
    x = 159,478.34

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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.