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Finding the Fourth Proportional to 561,813.19, 842,803.66 and 206,800.22

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Solution

The fourth proportional to 561,813.19, 842,803.66 and 206,800.22 is: 310,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,813.19 : 842,803.66 = 206,800.22 : x
  2. Step 2: Convert to fraction form
    561,813.19/842,803.66 = 206,800.22/x
  3. Step 3: Cross multiply
    561,813.19x = 842,803.66 × 206,800.22
  4. Step 4: Simplify right side
    561,813.19x = 174,291,982,304.81
  5. Step 5: Solve for x
    x = 174,291,982,304.81/561,813.19
  6. Step 6: Final answer
    x = 310,231.20

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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.