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Finding the Fourth Proportional to 358,345.60, 494,528.51 and 205,412.73

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Solution

The fourth proportional to 358,345.60, 494,528.51 and 205,412.73 is: 283,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,345.60 : 494,528.51 = 205,412.73 : x
  2. Step 2: Convert to fraction form
    358,345.60/494,528.51 = 205,412.73/x
  3. Step 3: Cross multiply
    358,345.60x = 494,528.51 × 205,412.73
  4. Step 4: Simplify right side
    358,345.60x = 101,582,451,301.93
  5. Step 5: Solve for x
    x = 101,582,451,301.93/358,345.60
  6. Step 6: Final answer
    x = 283,476.21

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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.