Home / 307,631.70-461,512.35-130,047.30

Finding the Fourth Proportional to 307,631.70, 461,512.35 and 130,047.30

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Solution

The fourth proportional to 307,631.70, 461,512.35 and 130,047.30 is: 195,098.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,631.70 : 461,512.35 = 130,047.30 : x
  2. Step 2: Convert to fraction form
    307,631.70/461,512.35 = 130,047.30/x
  3. Step 3: Cross multiply
    307,631.70x = 461,512.35 × 130,047.30
  4. Step 4: Simplify right side
    307,631.70x = 60,018,435,034.16
  5. Step 5: Solve for x
    x = 60,018,435,034.16/307,631.70
  6. Step 6: Final answer
    x = 195,098.34

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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.