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Finding the Fourth Proportional to 342,316.40, 512,092.20 and 296,082.80

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Solution

The fourth proportional to 342,316.40, 512,092.20 and 296,082.80 is: 442,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,316.40 : 512,092.20 = 296,082.80 : x
  2. Step 2: Convert to fraction form
    342,316.40/512,092.20 = 296,082.80/x
  3. Step 3: Cross multiply
    342,316.40x = 512,092.20 × 296,082.80
  4. Step 4: Simplify right side
    342,316.40x = 151,621,692,434.16
  5. Step 5: Solve for x
    x = 151,621,692,434.16/342,316.40
  6. Step 6: Final answer
    x = 442,928.51

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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.