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Finding the Fourth Proportional to 630,173.24, 945,255 and 156,855.44

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Solution

The fourth proportional to 630,173.24, 945,255 and 156,855.44 is: 235,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,173.24 : 945,255 = 156,855.44 : x
  2. Step 2: Convert to fraction form
    630,173.24/945,255 = 156,855.44/x
  3. Step 3: Cross multiply
    630,173.24x = 945,255 × 156,855.44
  4. Step 4: Simplify right side
    630,173.24x = 148,268,388,937.20
  5. Step 5: Solve for x
    x = 148,268,388,937.20/630,173.24
  6. Step 6: Final answer
    x = 235,281.95

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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.