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Finding the Fourth Proportional to 359,423.43, 496,004.85 and 198,278.16

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Solution

The fourth proportional to 359,423.43, 496,004.85 and 198,278.16 is: 273,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,423.43 : 496,004.85 = 198,278.16 : x
  2. Step 2: Convert to fraction form
    359,423.43/496,004.85 = 198,278.16/x
  3. Step 3: Cross multiply
    359,423.43x = 496,004.85 × 198,278.16
  4. Step 4: Simplify right side
    359,423.43x = 98,346,929,009.08
  5. Step 5: Solve for x
    x = 98,346,929,009.08/359,423.43
  6. Step 6: Final answer
    x = 273,624.15

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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.