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Finding the Fourth Proportional to 630,388.68, 945,444.54 and 181,009.32

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Solution

The fourth proportional to 630,388.68, 945,444.54 and 181,009.32 is: 271,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,388.68 : 945,444.54 = 181,009.32 : x
  2. Step 2: Convert to fraction form
    630,388.68/945,444.54 = 181,009.32/x
  3. Step 3: Cross multiply
    630,388.68x = 945,444.54 × 181,009.32
  4. Step 4: Simplify right side
    630,388.68x = 171,134,273,283.11
  5. Step 5: Solve for x
    x = 171,134,273,283.11/630,388.68
  6. Step 6: Final answer
    x = 271,474.22

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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.