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Finding the Fourth Proportional to 350,136.20, 525,204.30 and 342,360.20

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Solution

The fourth proportional to 350,136.20, 525,204.30 and 342,360.20 is: 513,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,136.20 : 525,204.30 = 342,360.20 : x
  2. Step 2: Convert to fraction form
    350,136.20/525,204.30 = 342,360.20/x
  3. Step 3: Cross multiply
    350,136.20x = 525,204.30 × 342,360.20
  4. Step 4: Simplify right side
    350,136.20x = 179,809,049,188.86
  5. Step 5: Solve for x
    x = 179,809,049,188.86/350,136.20
  6. Step 6: Final answer
    x = 513,540.30

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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.