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Finding the Fourth Proportional to 359,722.49, 496,477.07 and 343,778.81

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Solution

The fourth proportional to 359,722.49, 496,477.07 and 343,778.81 is: 474,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,722.49 : 496,477.07 = 343,778.81 : x
  2. Step 2: Convert to fraction form
    359,722.49/496,477.07 = 343,778.81/x
  3. Step 3: Cross multiply
    359,722.49x = 496,477.07 × 343,778.81
  4. Step 4: Simplify right side
    359,722.49x = 170,678,294,597.99
  5. Step 5: Solve for x
    x = 170,678,294,597.99/359,722.49
  6. Step 6: Final answer
    x = 474,472.13

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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.