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Finding the Fourth Proportional to 240,522.31, 360,676.81 and 128,181.58

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Solution

The fourth proportional to 240,522.31, 360,676.81 and 128,181.58 is: 192,215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,522.31 : 360,676.81 = 128,181.58 : x
  2. Step 2: Convert to fraction form
    240,522.31/360,676.81 = 128,181.58/x
  3. Step 3: Cross multiply
    240,522.31x = 360,676.81 × 128,181.58
  4. Step 4: Simplify right side
    240,522.31x = 46,232,123,956.40
  5. Step 5: Solve for x
    x = 46,232,123,956.40/240,522.31
  6. Step 6: Final answer
    x = 192,215.54

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1.5x scale

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.