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Finding the Fourth Proportional to 359,640.76, 496,268.91 and 198,485.40

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Solution

The fourth proportional to 359,640.76, 496,268.91 and 198,485.40 is: 273,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,640.76 : 496,268.91 = 198,485.40 : x
  2. Step 2: Convert to fraction form
    359,640.76/496,268.91 = 198,485.40/x
  3. Step 3: Cross multiply
    359,640.76x = 496,268.91 × 198,485.40
  4. Step 4: Simplify right side
    359,640.76x = 98,502,133,713.65
  5. Step 5: Solve for x
    x = 98,502,133,713.65/359,640.76
  6. Step 6: Final answer
    x = 273,890.35

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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.