Home / 211,063.20-291,267.24-115,575.76

Finding the Fourth Proportional to 211,063.20, 291,267.24 and 115,575.76

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Solution

The fourth proportional to 211,063.20, 291,267.24 and 115,575.76 is: 159,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,063.20 : 291,267.24 = 115,575.76 : x
  2. Step 2: Convert to fraction form
    211,063.20/291,267.24 = 115,575.76/x
  3. Step 3: Cross multiply
    211,063.20x = 291,267.24 × 115,575.76
  4. Step 4: Simplify right side
    211,063.20x = 33,663,432,626.10
  5. Step 5: Solve for x
    x = 33,663,432,626.10/211,063.20
  6. Step 6: Final answer
    x = 159,494.56

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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.