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Finding the Fourth Proportional to 359,782.92, 496,501.20 and 198,638.28

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Solution

The fourth proportional to 359,782.92, 496,501.20 and 198,638.28 is: 274,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,782.92 : 496,501.20 = 198,638.28 : x
  2. Step 2: Convert to fraction form
    359,782.92/496,501.20 = 198,638.28/x
  3. Step 3: Cross multiply
    359,782.92x = 496,501.20 × 198,638.28
  4. Step 4: Simplify right side
    359,782.92x = 98,624,144,385.94
  5. Step 5: Solve for x
    x = 98,624,144,385.94/359,782.92
  6. Step 6: Final answer
    x = 274,121.25

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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.