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Finding the Fourth Proportional to 255,882.38, 383,823.56 and 89,670.38

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Solution

The fourth proportional to 255,882.38, 383,823.56 and 89,670.38 is: 134,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,882.38 : 383,823.56 = 89,670.38 : x
  2. Step 2: Convert to fraction form
    255,882.38/383,823.56 = 89,670.38/x
  3. Step 3: Cross multiply
    255,882.38x = 383,823.56 × 89,670.38
  4. Step 4: Simplify right side
    255,882.38x = 34,417,602,783.21
  5. Step 5: Solve for x
    x = 34,417,602,783.21/255,882.38
  6. Step 6: Final answer
    x = 134,505.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.