Home / 436,828.16-655,255.04-121,308.16

Finding the Fourth Proportional to 436,828.16, 655,255.04 and 121,308.16

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Solution

The fourth proportional to 436,828.16, 655,255.04 and 121,308.16 is: 181,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,828.16 : 655,255.04 = 121,308.16 : x
  2. Step 2: Convert to fraction form
    436,828.16/655,255.04 = 121,308.16/x
  3. Step 3: Cross multiply
    436,828.16x = 655,255.04 × 121,308.16
  4. Step 4: Simplify right side
    436,828.16x = 79,487,783,233.13
  5. Step 5: Solve for x
    x = 79,487,783,233.13/436,828.16
  6. Step 6: Final answer
    x = 181,965.79

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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.