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Finding the Fourth Proportional to 358,212.32, 494,320.48 and 197,065.64

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Solution

The fourth proportional to 358,212.32, 494,320.48 and 197,065.64 is: 271,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,212.32 : 494,320.48 = 197,065.64 : x
  2. Step 2: Convert to fraction form
    358,212.32/494,320.48 = 197,065.64/x
  3. Step 3: Cross multiply
    358,212.32x = 494,320.48 × 197,065.64
  4. Step 4: Simplify right side
    358,212.32x = 97,413,581,756.31
  5. Step 5: Solve for x
    x = 97,413,581,756.31/358,212.32
  6. Step 6: Final answer
    x = 271,943.69

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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.