Home / 307,968.28-461,914.02-86,369.56

Finding the Fourth Proportional to 307,968.28, 461,914.02 and 86,369.56

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Solution

The fourth proportional to 307,968.28, 461,914.02 and 86,369.56 is: 129,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,968.28 : 461,914.02 = 86,369.56 : x
  2. Step 2: Convert to fraction form
    307,968.28/461,914.02 = 86,369.56/x
  3. Step 3: Cross multiply
    307,968.28x = 461,914.02 × 86,369.56
  4. Step 4: Simplify right side
    307,968.28x = 39,895,310,665.23
  5. Step 5: Solve for x
    x = 39,895,310,665.23/307,968.28
  6. Step 6: Final answer
    x = 129,543.57

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1.5x scale

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.