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Finding the Fourth Proportional to 630,172.40, 945,399.60 and 230,805.20

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Solution

The fourth proportional to 630,172.40, 945,399.60 and 230,805.20 is: 346,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,172.40 : 945,399.60 = 230,805.20 : x
  2. Step 2: Convert to fraction form
    630,172.40/945,399.60 = 230,805.20/x
  3. Step 3: Cross multiply
    630,172.40x = 945,399.60 × 230,805.20
  4. Step 4: Simplify right side
    630,172.40x = 218,203,143,757.92
  5. Step 5: Solve for x
    x = 218,203,143,757.92/630,172.40
  6. Step 6: Final answer
    x = 346,259.44

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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.