Home / 280,731.74-387,478.82-235,337.84

Finding the Fourth Proportional to 280,731.74, 387,478.82 and 235,337.84

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Solution

The fourth proportional to 280,731.74, 387,478.82 and 235,337.84 is: 324,824.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,731.74 : 387,478.82 = 235,337.84 : x
  2. Step 2: Convert to fraction form
    280,731.74/387,478.82 = 235,337.84/x
  3. Step 3: Cross multiply
    280,731.74x = 387,478.82 × 235,337.84
  4. Step 4: Simplify right side
    280,731.74x = 91,188,428,544.55
  5. Step 5: Solve for x
    x = 91,188,428,544.55/280,731.74
  6. Step 6: Final answer
    x = 324,824.08

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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.