Home / 424,820.07-637,231.79-172,105.34

Finding the Fourth Proportional to 424,820.07, 637,231.79 and 172,105.34

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Solution

The fourth proportional to 424,820.07, 637,231.79 and 172,105.34 is: 258,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,820.07 : 637,231.79 = 172,105.34 : x
  2. Step 2: Convert to fraction form
    424,820.07/637,231.79 = 172,105.34/x
  3. Step 3: Cross multiply
    424,820.07x = 637,231.79 × 172,105.34
  4. Step 4: Simplify right side
    424,820.07x = 109,670,989,830.07
  5. Step 5: Solve for x
    x = 109,670,989,830.07/424,820.07
  6. Step 6: Final answer
    x = 258,158.68

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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.