Home / 648,183.20-972,268.40-204,951.20

Finding the Fourth Proportional to 648,183.20, 972,268.40 and 204,951.20

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Solution

The fourth proportional to 648,183.20, 972,268.40 and 204,951.20 is: 307,424.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,183.20 : 972,268.40 = 204,951.20 : x
  2. Step 2: Convert to fraction form
    648,183.20/972,268.40 = 204,951.20/x
  3. Step 3: Cross multiply
    648,183.20x = 972,268.40 × 204,951.20
  4. Step 4: Simplify right side
    648,183.20x = 199,267,575,302.08
  5. Step 5: Solve for x
    x = 199,267,575,302.08/648,183.20
  6. Step 6: Final answer
    x = 307,424.78

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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.