Home / 211,242.87-291,467.70-120,569.85

Finding the Fourth Proportional to 211,242.87, 291,467.70 and 120,569.85

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Solution

The fourth proportional to 211,242.87, 291,467.70 and 120,569.85 is: 166,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,242.87 : 291,467.70 = 120,569.85 : x
  2. Step 2: Convert to fraction form
    211,242.87/291,467.70 = 120,569.85/x
  3. Step 3: Cross multiply
    211,242.87x = 291,467.70 × 120,569.85
  4. Step 4: Simplify right side
    211,242.87x = 35,142,216,868.85
  5. Step 5: Solve for x
    x = 35,142,216,868.85/211,242.87
  6. Step 6: Final answer
    x = 166,359.30

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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.