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Finding the Fourth Proportional to 347,006.40, 520,382.11 and 119,237.43

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Solution

The fourth proportional to 347,006.40, 520,382.11 and 119,237.43 is: 178,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,006.40 : 520,382.11 = 119,237.43 : x
  2. Step 2: Convert to fraction form
    347,006.40/520,382.11 = 119,237.43/x
  3. Step 3: Cross multiply
    347,006.40x = 520,382.11 × 119,237.43
  4. Step 4: Simplify right side
    347,006.40x = 62,049,022,514.76
  5. Step 5: Solve for x
    x = 62,049,022,514.76/347,006.40
  6. Step 6: Final answer
    x = 178,812.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.