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Finding the Fourth Proportional to 359,642.55, 496,305.68 and 198,496.45

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Solution

The fourth proportional to 359,642.55, 496,305.68 and 198,496.45 is: 273,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,642.55 : 496,305.68 = 198,496.45 : x
  2. Step 2: Convert to fraction form
    359,642.55/496,305.68 = 198,496.45/x
  3. Step 3: Cross multiply
    359,642.55x = 496,305.68 × 198,496.45
  4. Step 4: Simplify right side
    359,642.55x = 98,514,915,594.84
  5. Step 5: Solve for x
    x = 98,514,915,594.84/359,642.55
  6. Step 6: Final answer
    x = 273,924.53

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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.