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Finding the Fourth Proportional to 360,472.78, 540,236.14 and 265,257.12

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Solution

The fourth proportional to 360,472.78, 540,236.14 and 265,257.12 is: 397,537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,472.78 : 540,236.14 = 265,257.12 : x
  2. Step 2: Convert to fraction form
    360,472.78/540,236.14 = 265,257.12/x
  3. Step 3: Cross multiply
    360,472.78x = 540,236.14 × 265,257.12
  4. Step 4: Simplify right side
    360,472.78x = 143,301,479,915.14
  5. Step 5: Solve for x
    x = 143,301,479,915.14/360,472.78
  6. Step 6: Final answer
    x = 397,537.59

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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.