Home / 217,365.96-299,893.32-131,292.78

Finding the Fourth Proportional to 217,365.96, 299,893.32 and 131,292.78

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Solution

The fourth proportional to 217,365.96, 299,893.32 and 131,292.78 is: 181,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,365.96 : 299,893.32 = 131,292.78 : x
  2. Step 2: Convert to fraction form
    217,365.96/299,893.32 = 131,292.78/x
  3. Step 3: Cross multiply
    217,365.96x = 299,893.32 × 131,292.78
  4. Step 4: Simplify right side
    217,365.96x = 39,373,827,686.23
  5. Step 5: Solve for x
    x = 39,373,827,686.23/217,365.96
  6. Step 6: Final answer
    x = 181,140.73

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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.