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Finding the Fourth Proportional to 359,703.30, 496,390.65 and 198,558.45

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Solution

The fourth proportional to 359,703.30, 496,390.65 and 198,558.45 is: 274,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,703.30 : 496,390.65 = 198,558.45 : x
  2. Step 2: Convert to fraction form
    359,703.30/496,390.65 = 198,558.45/x
  3. Step 3: Cross multiply
    359,703.30x = 496,390.65 × 198,558.45
  4. Step 4: Simplify right side
    359,703.30x = 98,562,558,058.49
  5. Step 5: Solve for x
    x = 98,562,558,058.49/359,703.30
  6. Step 6: Final answer
    x = 274,010.71

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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.