Home / 402,441.59-555,382.30-221,170.27

Finding the Fourth Proportional to 402,441.59, 555,382.30 and 221,170.27

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Solution

The fourth proportional to 402,441.59, 555,382.30 and 221,170.27 is: 305,222.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,441.59 : 555,382.30 = 221,170.27 : x
  2. Step 2: Convert to fraction form
    402,441.59/555,382.30 = 221,170.27/x
  3. Step 3: Cross multiply
    402,441.59x = 555,382.30 × 221,170.27
  4. Step 4: Simplify right side
    402,441.59x = 122,834,053,244.22
  5. Step 5: Solve for x
    x = 122,834,053,244.22/402,441.59
  6. Step 6: Final answer
    x = 305,222.07

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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.