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Finding the Fourth Proportional to 307,614.60, 461,421.90 and 303,467.40

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Solution

The fourth proportional to 307,614.60, 461,421.90 and 303,467.40 is: 455,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,614.60 : 461,421.90 = 303,467.40 : x
  2. Step 2: Convert to fraction form
    307,614.60/461,421.90 = 303,467.40/x
  3. Step 3: Cross multiply
    307,614.60x = 461,421.90 × 303,467.40
  4. Step 4: Simplify right side
    307,614.60x = 140,026,504,296.06
  5. Step 5: Solve for x
    x = 140,026,504,296.06/307,614.60
  6. Step 6: Final answer
    x = 455,201.10

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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.