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Finding the Fourth Proportional to 342,016.20, 513,024.30 and 306,586.80

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Solution

The fourth proportional to 342,016.20, 513,024.30 and 306,586.80 is: 459,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,016.20 : 513,024.30 = 306,586.80 : x
  2. Step 2: Convert to fraction form
    342,016.20/513,024.30 = 306,586.80/x
  3. Step 3: Cross multiply
    342,016.20x = 513,024.30 × 306,586.80
  4. Step 4: Simplify right side
    342,016.20x = 157,286,478,459.24
  5. Step 5: Solve for x
    x = 157,286,478,459.24/342,016.20
  6. Step 6: Final answer
    x = 459,880.20

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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.