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Finding the Fourth Proportional to 561,803.29, 842,788.85 and 206,790.32

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Solution

The fourth proportional to 561,803.29, 842,788.85 and 206,790.32 is: 310,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,803.29 : 842,788.85 = 206,790.32 : x
  2. Step 2: Convert to fraction form
    561,803.29/842,788.85 = 206,790.32/x
  3. Step 3: Cross multiply
    561,803.29x = 842,788.85 × 206,790.32
  4. Step 4: Simplify right side
    561,803.29x = 174,280,573,479.46
  5. Step 5: Solve for x
    x = 174,280,573,479.46/561,803.29
  6. Step 6: Final answer
    x = 310,216.36

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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.