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Finding the Fourth Proportional to 319,458.94, 478,484.38 and 264,057.35

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Solution

The fourth proportional to 319,458.94, 478,484.38 and 264,057.35 is: 395,504.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,458.94 : 478,484.38 = 264,057.35 : x
  2. Step 2: Convert to fraction form
    319,458.94/478,484.38 = 264,057.35/x
  3. Step 3: Cross multiply
    319,458.94x = 478,484.38 × 264,057.35
  4. Step 4: Simplify right side
    319,458.94x = 126,347,317,399.19
  5. Step 5: Solve for x
    x = 126,347,317,399.19/319,458.94
  6. Step 6: Final answer
    x = 395,504.09

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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.