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Finding the Fourth Proportional to 630,307.80, 945,520.38 and 251,137.08

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Solution

The fourth proportional to 630,307.80, 945,520.38 and 251,137.08 is: 376,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,307.80 : 945,520.38 = 251,137.08 : x
  2. Step 2: Convert to fraction form
    630,307.80/945,520.38 = 251,137.08/x
  3. Step 3: Cross multiply
    630,307.80x = 945,520.38 × 251,137.08
  4. Step 4: Simplify right side
    630,307.80x = 237,455,227,313.69
  5. Step 5: Solve for x
    x = 237,455,227,313.69/630,307.80
  6. Step 6: Final answer
    x = 376,729.00

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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.