Home / 309,741.41-427,593.32-207,729.56

Finding the Fourth Proportional to 309,741.41, 427,593.32 and 207,729.56

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Solution

The fourth proportional to 309,741.41, 427,593.32 and 207,729.56 is: 286,767.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,741.41 : 427,593.32 = 207,729.56 : x
  2. Step 2: Convert to fraction form
    309,741.41/427,593.32 = 207,729.56/x
  3. Step 3: Cross multiply
    309,741.41x = 427,593.32 × 207,729.56
  4. Step 4: Simplify right side
    309,741.41x = 88,823,769,045.92
  5. Step 5: Solve for x
    x = 88,823,769,045.92/309,741.41
  6. Step 6: Final answer
    x = 286,767.50

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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.