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Finding the Fourth Proportional to 561,323.20, 842,269.20 and 245,783.20

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Solution

The fourth proportional to 561,323.20, 842,269.20 and 245,783.20 is: 368,799.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,323.20 : 842,269.20 = 245,783.20 : x
  2. Step 2: Convert to fraction form
    561,323.20/842,269.20 = 245,783.20/x
  3. Step 3: Cross multiply
    561,323.20x = 842,269.20 × 245,783.20
  4. Step 4: Simplify right side
    561,323.20x = 207,015,619,237.44
  5. Step 5: Solve for x
    x = 207,015,619,237.44/561,323.20
  6. Step 6: Final answer
    x = 368,799.33

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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.