Home / 386,931.54-533,958.03-214,840.56

Finding the Fourth Proportional to 386,931.54, 533,958.03 and 214,840.56

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Solution

The fourth proportional to 386,931.54, 533,958.03 and 214,840.56 is: 296,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,931.54 : 533,958.03 = 214,840.56 : x
  2. Step 2: Convert to fraction form
    386,931.54/533,958.03 = 214,840.56/x
  3. Step 3: Cross multiply
    386,931.54x = 533,958.03 × 214,840.56
  4. Step 4: Simplify right side
    386,931.54x = 114,715,842,181.70
  5. Step 5: Solve for x
    x = 114,715,842,181.70/386,931.54
  6. Step 6: Final answer
    x = 296,475.81

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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.