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Finding the Fourth Proportional to 359,703.40, 496,395.30 and 198,558.76

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Solution

The fourth proportional to 359,703.40, 496,395.30 and 198,558.76 is: 274,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,703.40 : 496,395.30 = 198,558.76 : x
  2. Step 2: Convert to fraction form
    359,703.40/496,395.30 = 198,558.76/x
  3. Step 3: Cross multiply
    359,703.40x = 496,395.30 × 198,558.76
  4. Step 4: Simplify right side
    359,703.40x = 98,563,635,237.83
  5. Step 5: Solve for x
    x = 98,563,635,237.83/359,703.40
  6. Step 6: Final answer
    x = 274,013.63

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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.