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Finding the Fourth Proportional to 319,477.44, 440,861.04 and 176,208.96

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Solution

The fourth proportional to 319,477.44, 440,861.04 and 176,208.96 is: 243,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,477.44 : 440,861.04 = 176,208.96 : x
  2. Step 2: Convert to fraction form
    319,477.44/440,861.04 = 176,208.96/x
  3. Step 3: Cross multiply
    319,477.44x = 440,861.04 × 176,208.96
  4. Step 4: Simplify right side
    319,477.44x = 77,683,665,362.92
  5. Step 5: Solve for x
    x = 77,683,665,362.92/319,477.44
  6. Step 6: Final answer
    x = 243,158.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.