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Finding the Fourth Proportional to 359,710.49, 496,400.55 and 198,565.64

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Solution

The fourth proportional to 359,710.49, 496,400.55 and 198,565.64 is: 274,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,710.49 : 496,400.55 = 198,565.64 : x
  2. Step 2: Convert to fraction form
    359,710.49/496,400.55 = 198,565.64/x
  3. Step 3: Cross multiply
    359,710.49x = 496,400.55 × 198,565.64
  4. Step 4: Simplify right side
    359,710.49x = 98,568,090,425.10
  5. Step 5: Solve for x
    x = 98,568,090,425.10/359,710.49
  6. Step 6: Final answer
    x = 274,020.62

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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.