Home / 436,731.18-655,097.10-121,188.39

Finding the Fourth Proportional to 436,731.18, 655,097.10 and 121,188.39

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Solution

The fourth proportional to 436,731.18, 655,097.10 and 121,188.39 is: 181,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,731.18 : 655,097.10 = 121,188.39 : x
  2. Step 2: Convert to fraction form
    436,731.18/655,097.10 = 121,188.39/x
  3. Step 3: Cross multiply
    436,731.18x = 655,097.10 × 121,188.39
  4. Step 4: Simplify right side
    436,731.18x = 79,390,162,842.67
  5. Step 5: Solve for x
    x = 79,390,162,842.67/436,731.18
  6. Step 6: Final answer
    x = 181,782.68

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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.