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Finding the Fourth Proportional to 436,802, 655,206.60 and 121,283.48

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Solution

The fourth proportional to 436,802, 655,206.60 and 121,283.48 is: 181,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,802 : 655,206.60 = 121,283.48 : x
  2. Step 2: Convert to fraction form
    436,802/655,206.60 = 121,283.48/x
  3. Step 3: Cross multiply
    436,802x = 655,206.60 × 121,283.48
  4. Step 4: Simplify right side
    436,802x = 79,465,736,566.97
  5. Step 5: Solve for x
    x = 79,465,736,566.97/436,802
  6. Step 6: Final answer
    x = 181,926.22

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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.