Home / 402,917.15-556,013.97-221,629.03

Finding the Fourth Proportional to 402,917.15, 556,013.97 and 221,629.03

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Solution

The fourth proportional to 402,917.15, 556,013.97 and 221,629.03 is: 305,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,917.15 : 556,013.97 = 221,629.03 : x
  2. Step 2: Convert to fraction form
    402,917.15/556,013.97 = 221,629.03/x
  3. Step 3: Cross multiply
    402,917.15x = 556,013.97 × 221,629.03
  4. Step 4: Simplify right side
    402,917.15x = 123,228,835,447.51
  5. Step 5: Solve for x
    x = 123,228,835,447.51/402,917.15
  6. Step 6: Final answer
    x = 305,841.62

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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.