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Finding the Fourth Proportional to 493,388.50, 739,486.72 and 240,289.72

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Solution

The fourth proportional to 493,388.50, 739,486.72 and 240,289.72 is: 360,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,388.50 : 739,486.72 = 240,289.72 : x
  2. Step 2: Convert to fraction form
    493,388.50/739,486.72 = 240,289.72/x
  3. Step 3: Cross multiply
    493,388.50x = 739,486.72 × 240,289.72
  4. Step 4: Simplify right side
    493,388.50x = 177,691,058,152.15
  5. Step 5: Solve for x
    x = 177,691,058,152.15/493,388.50
  6. Step 6: Final answer
    x = 360,144.30

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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.