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Finding the Fourth Proportional to 393,473.12, 590,800.16 and 225,183.47

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Solution

The fourth proportional to 393,473.12, 590,800.16 and 225,183.47 is: 338,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,473.12 : 590,800.16 = 225,183.47 : x
  2. Step 2: Convert to fraction form
    393,473.12/590,800.16 = 225,183.47/x
  3. Step 3: Cross multiply
    393,473.12x = 590,800.16 × 225,183.47
  4. Step 4: Simplify right side
    393,473.12x = 133,038,427,714.31
  5. Step 5: Solve for x
    x = 133,038,427,714.31/393,473.12
  6. Step 6: Final answer
    x = 338,113.13

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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.