Home / 211,180.50-291,436.37-115,687.20

Finding the Fourth Proportional to 211,180.50, 291,436.37 and 115,687.20

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Solution

The fourth proportional to 211,180.50, 291,436.37 and 115,687.20 is: 159,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,180.50 : 291,436.37 = 115,687.20 : x
  2. Step 2: Convert to fraction form
    211,180.50/291,436.37 = 115,687.20/x
  3. Step 3: Cross multiply
    211,180.50x = 291,436.37 × 115,687.20
  4. Step 4: Simplify right side
    211,180.50x = 33,715,457,045.03
  5. Step 5: Solve for x
    x = 33,715,457,045.03/211,180.50
  6. Step 6: Final answer
    x = 159,652.32

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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.