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Finding the Fourth Proportional to 438,758.32, 658,137.48 and 106,334.32

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Solution

The fourth proportional to 438,758.32, 658,137.48 and 106,334.32 is: 159,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,758.32 : 658,137.48 = 106,334.32 : x
  2. Step 2: Convert to fraction form
    438,758.32/658,137.48 = 106,334.32/x
  3. Step 3: Cross multiply
    438,758.32x = 658,137.48 × 106,334.32
  4. Step 4: Simplify right side
    438,758.32x = 69,982,598,111.63
  5. Step 5: Solve for x
    x = 69,982,598,111.63/438,758.32
  6. Step 6: Final answer
    x = 159,501.47

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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.