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Finding the Fourth Proportional to 443,125.10, 665,015.70 and 293,315.60

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Solution

The fourth proportional to 443,125.10, 665,015.70 and 293,315.60 is: 440,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,125.10 : 665,015.70 = 293,315.60 : x
  2. Step 2: Convert to fraction form
    443,125.10/665,015.70 = 293,315.60/x
  3. Step 3: Cross multiply
    443,125.10x = 665,015.70 × 293,315.60
  4. Step 4: Simplify right side
    443,125.10x = 195,059,479,054.92
  5. Step 5: Solve for x
    x = 195,059,479,054.92/443,125.10
  6. Step 6: Final answer
    x = 440,190.54

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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.