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Finding the Fourth Proportional to 358,351.86, 494,525.64 and 197,206.91

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Solution

The fourth proportional to 358,351.86, 494,525.64 and 197,206.91 is: 272,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,351.86 : 494,525.64 = 197,206.91 : x
  2. Step 2: Convert to fraction form
    358,351.86/494,525.64 = 197,206.91/x
  3. Step 3: Cross multiply
    358,351.86x = 494,525.64 × 197,206.91
  4. Step 4: Simplify right side
    358,351.86x = 97,523,870,907.54
  5. Step 5: Solve for x
    x = 97,523,870,907.54/358,351.86
  6. Step 6: Final answer
    x = 272,145.57

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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.