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Finding the Fourth Proportional to 630,144.40, 945,357.60 and 230,777.20

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Solution

The fourth proportional to 630,144.40, 945,357.60 and 230,777.20 is: 346,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,144.40 : 945,357.60 = 230,777.20 : x
  2. Step 2: Convert to fraction form
    630,144.40/945,357.60 = 230,777.20/x
  3. Step 3: Cross multiply
    630,144.40x = 945,357.60 × 230,777.20
  4. Step 4: Simplify right side
    630,144.40x = 218,166,979,926.72
  5. Step 5: Solve for x
    x = 218,166,979,926.72/630,144.40
  6. Step 6: Final answer
    x = 346,217.44

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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.