Home / 436,727.20-655,090.80-121,184.16

Finding the Fourth Proportional to 436,727.20, 655,090.80 and 121,184.16

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Solution

The fourth proportional to 436,727.20, 655,090.80 and 121,184.16 is: 181,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,727.20 : 655,090.80 = 121,184.16 : x
  2. Step 2: Convert to fraction form
    436,727.20/655,090.80 = 121,184.16/x
  3. Step 3: Cross multiply
    436,727.20x = 655,090.80 × 121,184.16
  4. Step 4: Simplify right side
    436,727.20x = 79,386,628,321.73
  5. Step 5: Solve for x
    x = 79,386,628,321.73/436,727.20
  6. Step 6: Final answer
    x = 181,776.24

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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.