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Finding the Fourth Proportional to 238,468.28, 357,480.06 and 80,586.32

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Solution

The fourth proportional to 238,468.28, 357,480.06 and 80,586.32 is: 120,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,468.28 : 357,480.06 = 80,586.32 : x
  2. Step 2: Convert to fraction form
    238,468.28/357,480.06 = 80,586.32/x
  3. Step 3: Cross multiply
    238,468.28x = 357,480.06 × 80,586.32
  4. Step 4: Simplify right side
    238,468.28x = 28,808,000,721.38
  5. Step 5: Solve for x
    x = 28,808,000,721.38/238,468.28
  6. Step 6: Final answer
    x = 120,804.33

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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.