Home / 307,921.40-461,946.90-97,580.60

Finding the Fourth Proportional to 307,921.40, 461,946.90 and 97,580.60

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Solution

The fourth proportional to 307,921.40, 461,946.90 and 97,580.60 is: 146,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,921.40 : 461,946.90 = 97,580.60 : x
  2. Step 2: Convert to fraction form
    307,921.40/461,946.90 = 97,580.60/x
  3. Step 3: Cross multiply
    307,921.40x = 461,946.90 × 97,580.60
  4. Step 4: Simplify right side
    307,921.40x = 45,077,055,670.14
  5. Step 5: Solve for x
    x = 45,077,055,670.14/307,921.40
  6. Step 6: Final answer
    x = 146,391.44

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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.