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Finding the Fourth Proportional to 366,594.71, 505,805.72 and 221,285.65

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Solution

The fourth proportional to 366,594.71, 505,805.72 and 221,285.65 is: 305,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,594.71 : 505,805.72 = 221,285.65 : x
  2. Step 2: Convert to fraction form
    366,594.71/505,805.72 = 221,285.65/x
  3. Step 3: Cross multiply
    366,594.71x = 505,805.72 × 221,285.65
  4. Step 4: Simplify right side
    366,594.71x = 111,927,545,152.98
  5. Step 5: Solve for x
    x = 111,927,545,152.98/366,594.71
  6. Step 6: Final answer
    x = 305,316.86

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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.