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Finding the Fourth Proportional to 342,882.20, 512,865.30 and 307,598.60

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Solution

The fourth proportional to 342,882.20, 512,865.30 and 307,598.60 is: 460,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,882.20 : 512,865.30 = 307,598.60 : x
  2. Step 2: Convert to fraction form
    342,882.20/512,865.30 = 307,598.60/x
  3. Step 3: Cross multiply
    342,882.20x = 512,865.30 × 307,598.60
  4. Step 4: Simplify right side
    342,882.20x = 157,756,648,268.58
  5. Step 5: Solve for x
    x = 157,756,648,268.58/342,882.20
  6. Step 6: Final answer
    x = 460,089.93

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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.