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Finding the Fourth Proportional to 359,642.90, 496,271.86 and 198,487.53

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Solution

The fourth proportional to 359,642.90, 496,271.86 and 198,487.53 is: 273,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,642.90 : 496,271.86 = 198,487.53 : x
  2. Step 2: Convert to fraction form
    359,642.90/496,271.86 = 198,487.53/x
  3. Step 3: Cross multiply
    359,642.90x = 496,271.86 × 198,487.53
  4. Step 4: Simplify right side
    359,642.90x = 98,503,777,064.71
  5. Step 5: Solve for x
    x = 98,503,777,064.71/359,642.90
  6. Step 6: Final answer
    x = 273,893.29

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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.