Home / 211,022.96-291,200.54-115,511.13

Finding the Fourth Proportional to 211,022.96, 291,200.54 and 115,511.13

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Solution

The fourth proportional to 211,022.96, 291,200.54 and 115,511.13 is: 159,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,022.96 : 291,200.54 = 115,511.13 : x
  2. Step 2: Convert to fraction form
    211,022.96/291,200.54 = 115,511.13/x
  3. Step 3: Cross multiply
    211,022.96x = 291,200.54 × 115,511.13
  4. Step 4: Simplify right side
    211,022.96x = 33,636,902,854.45
  5. Step 5: Solve for x
    x = 33,636,902,854.45/211,022.96
  6. Step 6: Final answer
    x = 159,399.26

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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.