Home / 221,715.24-305,955.54-126,221.64

Finding the Fourth Proportional to 221,715.24, 305,955.54 and 126,221.64

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Solution

The fourth proportional to 221,715.24, 305,955.54 and 126,221.64 is: 174,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,715.24 : 305,955.54 = 126,221.64 : x
  2. Step 2: Convert to fraction form
    221,715.24/305,955.54 = 126,221.64/x
  3. Step 3: Cross multiply
    221,715.24x = 305,955.54 × 126,221.64
  4. Step 4: Simplify right side
    221,715.24x = 38,618,210,025.89
  5. Step 5: Solve for x
    x = 38,618,210,025.89/221,715.24
  6. Step 6: Final answer
    x = 174,179.32

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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.