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Finding the Fourth Proportional to 366,145.50, 505,288.47 and 207,169.50

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Solution

The fourth proportional to 366,145.50, 505,288.47 and 207,169.50 is: 285,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,145.50 : 505,288.47 = 207,169.50 : x
  2. Step 2: Convert to fraction form
    366,145.50/505,288.47 = 207,169.50/x
  3. Step 3: Cross multiply
    366,145.50x = 505,288.47 × 207,169.50
  4. Step 4: Simplify right side
    366,145.50x = 104,680,359,685.67
  5. Step 5: Solve for x
    x = 104,680,359,685.67/366,145.50
  6. Step 6: Final answer
    x = 285,898.26

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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.