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Finding the Fourth Proportional to 630,222.72, 945,048.80 and 180,840.48

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Solution

The fourth proportional to 630,222.72, 945,048.80 and 180,840.48 is: 271,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,222.72 : 945,048.80 = 180,840.48 : x
  2. Step 2: Convert to fraction form
    630,222.72/945,048.80 = 180,840.48/x
  3. Step 3: Cross multiply
    630,222.72x = 945,048.80 × 180,840.48
  4. Step 4: Simplify right side
    630,222.72x = 170,903,078,615.42
  5. Step 5: Solve for x
    x = 170,903,078,615.42/630,222.72
  6. Step 6: Final answer
    x = 271,178.86

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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.