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Finding the Fourth Proportional to 436,726.80, 655,435.80 and 170,614.80

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Solution

The fourth proportional to 436,726.80, 655,435.80 and 170,614.80 is: 256,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,726.80 : 655,435.80 = 170,614.80 : x
  2. Step 2: Convert to fraction form
    436,726.80/655,435.80 = 170,614.80/x
  3. Step 3: Cross multiply
    436,726.80x = 655,435.80 × 170,614.80
  4. Step 4: Simplify right side
    436,726.80x = 111,827,047,929.84
  5. Step 5: Solve for x
    x = 111,827,047,929.84/436,726.80
  6. Step 6: Final answer
    x = 256,057.21

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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.