Home / 221,036.28-331,652.40-115,830.24

Finding the Fourth Proportional to 221,036.28, 331,652.40 and 115,830.24

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Solution

The fourth proportional to 221,036.28, 331,652.40 and 115,830.24 is: 173,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,036.28 : 331,652.40 = 115,830.24 : x
  2. Step 2: Convert to fraction form
    221,036.28/331,652.40 = 115,830.24/x
  3. Step 3: Cross multiply
    221,036.28x = 331,652.40 × 115,830.24
  4. Step 4: Simplify right side
    221,036.28x = 38,415,377,088.58
  5. Step 5: Solve for x
    x = 38,415,377,088.58/221,036.28
  6. Step 6: Final answer
    x = 173,796.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.