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Finding the Fourth Proportional to 630,586.72, 946,015.20 and 181,303.60

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Solution

The fourth proportional to 630,586.72, 946,015.20 and 181,303.60 is: 271,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,586.72 : 946,015.20 = 181,303.60 : x
  2. Step 2: Convert to fraction form
    630,586.72/946,015.20 = 181,303.60/x
  3. Step 3: Cross multiply
    630,586.72x = 946,015.20 × 181,303.60
  4. Step 4: Simplify right side
    630,586.72x = 171,515,961,414.72
  5. Step 5: Solve for x
    x = 171,515,961,414.72/630,586.72
  6. Step 6: Final answer
    x = 271,994.25

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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.