Home / 307,984.47-424,990.89-171,999.54

Finding the Fourth Proportional to 307,984.47, 424,990.89 and 171,999.54

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Solution

The fourth proportional to 307,984.47, 424,990.89 and 171,999.54 is: 237,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,984.47 : 424,990.89 = 171,999.54 : x
  2. Step 2: Convert to fraction form
    307,984.47/424,990.89 = 171,999.54/x
  3. Step 3: Cross multiply
    307,984.47x = 424,990.89 × 171,999.54
  4. Step 4: Simplify right side
    307,984.47x = 73,098,237,584.19
  5. Step 5: Solve for x
    x = 73,098,237,584.19/307,984.47
  6. Step 6: Final answer
    x = 237,343.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.