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Finding the Fourth Proportional to 358,384.68, 494,365.12 and 224,015.40

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Solution

The fourth proportional to 358,384.68, 494,365.12 and 224,015.40 is: 309,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,384.68 : 494,365.12 = 224,015.40 : x
  2. Step 2: Convert to fraction form
    358,384.68/494,365.12 = 224,015.40/x
  3. Step 3: Cross multiply
    358,384.68x = 494,365.12 × 224,015.40
  4. Step 4: Simplify right side
    358,384.68x = 110,745,400,102.85
  5. Step 5: Solve for x
    x = 110,745,400,102.85/358,384.68
  6. Step 6: Final answer
    x = 309,012.65

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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.