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Finding the Fourth Proportional to 359,728.79, 496,412.72 and 198,580.38

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Solution

The fourth proportional to 359,728.79, 496,412.72 and 198,580.38 is: 274,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,728.79 : 496,412.72 = 198,580.38 : x
  2. Step 2: Convert to fraction form
    359,728.79/496,412.72 = 198,580.38/x
  3. Step 3: Cross multiply
    359,728.79x = 496,412.72 × 198,580.38
  4. Step 4: Simplify right side
    359,728.79x = 98,577,825,581.53
  5. Step 5: Solve for x
    x = 98,577,825,581.53/359,728.79
  6. Step 6: Final answer
    x = 274,033.74

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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.