Home / 388,286.93-535,731.34-227,181.57

Finding the Fourth Proportional to 388,286.93, 535,731.34 and 227,181.57

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Solution

The fourth proportional to 388,286.93, 535,731.34 and 227,181.57 is: 313,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,286.93 : 535,731.34 = 227,181.57 : x
  2. Step 2: Convert to fraction form
    388,286.93/535,731.34 = 227,181.57/x
  3. Step 3: Cross multiply
    388,286.93x = 535,731.34 × 227,181.57
  4. Step 4: Simplify right side
    388,286.93x = 121,708,286,919.40
  5. Step 5: Solve for x
    x = 121,708,286,919.40/388,286.93
  6. Step 6: Final answer
    x = 313,449.35

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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.