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Finding the Fourth Proportional to 303,668.10, 455,830.20 and 170,807.85

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Solution

The fourth proportional to 303,668.10, 455,830.20 and 170,807.85 is: 256,396.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,668.10 : 455,830.20 = 170,807.85 : x
  2. Step 2: Convert to fraction form
    303,668.10/455,830.20 = 170,807.85/x
  3. Step 3: Cross multiply
    303,668.10x = 455,830.20 × 170,807.85
  4. Step 4: Simplify right side
    303,668.10x = 77,859,376,427.07
  5. Step 5: Solve for x
    x = 77,859,376,427.07/303,668.10
  6. Step 6: Final answer
    x = 256,396.30

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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.