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Finding the Fourth Proportional to 298,349.28, 411,874.54 and 230,213.30

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Solution

The fourth proportional to 298,349.28, 411,874.54 and 230,213.30 is: 317,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,349.28 : 411,874.54 = 230,213.30 : x
  2. Step 2: Convert to fraction form
    298,349.28/411,874.54 = 230,213.30/x
  3. Step 3: Cross multiply
    298,349.28x = 411,874.54 × 230,213.30
  4. Step 4: Simplify right side
    298,349.28x = 94,818,994,404.48
  5. Step 5: Solve for x
    x = 94,818,994,404.48/298,349.28
  6. Step 6: Final answer
    x = 317,812.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.