Home / 436,789.96-655,188.60-121,271.46

Finding the Fourth Proportional to 436,789.96, 655,188.60 and 121,271.46

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Solution

The fourth proportional to 436,789.96, 655,188.60 and 121,271.46 is: 181,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,789.96 : 655,188.60 = 121,271.46 : x
  2. Step 2: Convert to fraction form
    436,789.96/655,188.60 = 121,271.46/x
  3. Step 3: Cross multiply
    436,789.96x = 655,188.60 × 121,271.46
  4. Step 4: Simplify right side
    436,789.96x = 79,455,678,097.36
  5. Step 5: Solve for x
    x = 79,455,678,097.36/436,789.96
  6. Step 6: Final answer
    x = 181,908.21

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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.