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Finding the Fourth Proportional to 359,630.81, 496,288.07 and 198,485.86

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Solution

The fourth proportional to 359,630.81, 496,288.07 and 198,485.86 is: 273,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,630.81 : 496,288.07 = 198,485.86 : x
  2. Step 2: Convert to fraction form
    359,630.81/496,288.07 = 198,485.86/x
  3. Step 3: Cross multiply
    359,630.81x = 496,288.07 × 198,485.86
  4. Step 4: Simplify right side
    359,630.81x = 98,506,164,381.69
  5. Step 5: Solve for x
    x = 98,506,164,381.69/359,630.81
  6. Step 6: Final answer
    x = 273,909.14

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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.