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Finding the Fourth Proportional to 366,820.76, 506,217.83 and 221,606.36

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Solution

The fourth proportional to 366,820.76, 506,217.83 and 221,606.36 is: 305,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,820.76 : 506,217.83 = 221,606.36 : x
  2. Step 2: Convert to fraction form
    366,820.76/506,217.83 = 221,606.36/x
  3. Step 3: Cross multiply
    366,820.76x = 506,217.83 × 221,606.36
  4. Step 4: Simplify right side
    366,820.76x = 112,181,087,034.28
  5. Step 5: Solve for x
    x = 112,181,087,034.28/366,820.76
  6. Step 6: Final answer
    x = 305,819.90

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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.