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Finding the Fourth Proportional to 307,513.20, 461,269.80 and 245,305.20

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Solution

The fourth proportional to 307,513.20, 461,269.80 and 245,305.20 is: 367,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,513.20 : 461,269.80 = 245,305.20 : x
  2. Step 2: Convert to fraction form
    307,513.20/461,269.80 = 245,305.20/x
  3. Step 3: Cross multiply
    307,513.20x = 461,269.80 × 245,305.20
  4. Step 4: Simplify right side
    307,513.20x = 113,151,880,542.96
  5. Step 5: Solve for x
    x = 113,151,880,542.96/307,513.20
  6. Step 6: Final answer
    x = 367,957.80

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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.