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Finding the Fourth Proportional to 295,686.30, 408,047.26 and 159,720.25

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Solution

The fourth proportional to 295,686.30, 408,047.26 and 159,720.25 is: 220,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,686.30 : 408,047.26 = 159,720.25 : x
  2. Step 2: Convert to fraction form
    295,686.30/408,047.26 = 159,720.25/x
  3. Step 3: Cross multiply
    295,686.30x = 408,047.26 × 159,720.25
  4. Step 4: Simplify right side
    295,686.30x = 65,173,410,379.02
  5. Step 5: Solve for x
    x = 65,173,410,379.02/295,686.30
  6. Step 6: Final answer
    x = 220,414.03

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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.