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Finding the Fourth Proportional to 307,986.03, 461,898.81 and 130,401.63

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Solution

The fourth proportional to 307,986.03, 461,898.81 and 130,401.63 is: 195,568.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,986.03 : 461,898.81 = 130,401.63 : x
  2. Step 2: Convert to fraction form
    307,986.03/461,898.81 = 130,401.63/x
  3. Step 3: Cross multiply
    307,986.03x = 461,898.81 × 130,401.63
  4. Step 4: Simplify right side
    307,986.03x = 60,232,357,719.06
  5. Step 5: Solve for x
    x = 60,232,357,719.06/307,986.03
  6. Step 6: Final answer
    x = 195,568.47

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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.