Home / 211,300.40-291,581.34-115,800.32

Finding the Fourth Proportional to 211,300.40, 291,581.34 and 115,800.32

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Solution

The fourth proportional to 211,300.40, 291,581.34 and 115,800.32 is: 159,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,300.40 : 291,581.34 = 115,800.32 : x
  2. Step 2: Convert to fraction form
    211,300.40/291,581.34 = 115,800.32/x
  3. Step 3: Cross multiply
    211,300.40x = 291,581.34 × 115,800.32
  4. Step 4: Simplify right side
    211,300.40x = 33,765,212,772.73
  5. Step 5: Solve for x
    x = 33,765,212,772.73/211,300.40
  6. Step 6: Final answer
    x = 159,797.20

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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.