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Finding the Fourth Proportional to 630,055.80, 945,266.76 and 203,582.70

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Solution

The fourth proportional to 630,055.80, 945,266.76 and 203,582.70 is: 305,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,055.80 : 945,266.76 = 203,582.70 : x
  2. Step 2: Convert to fraction form
    630,055.80/945,266.76 = 203,582.70/x
  3. Step 3: Cross multiply
    630,055.80x = 945,266.76 × 203,582.70
  4. Step 4: Simplify right side
    630,055.80x = 192,439,959,221.05
  5. Step 5: Solve for x
    x = 192,439,959,221.05/630,055.80
  6. Step 6: Final answer
    x = 305,433.20

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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.