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Finding the Fourth Proportional to 264,054.78, 395,136 and 228,638.34

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Solution

The fourth proportional to 264,054.78, 395,136 and 228,638.34 is: 342,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,054.78 : 395,136 = 228,638.34 : x
  2. Step 2: Convert to fraction form
    264,054.78/395,136 = 228,638.34/x
  3. Step 3: Cross multiply
    264,054.78x = 395,136 × 228,638.34
  4. Step 4: Simplify right side
    264,054.78x = 90,343,239,114.24
  5. Step 5: Solve for x
    x = 90,343,239,114.24/264,054.78
  6. Step 6: Final answer
    x = 342,138.25

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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.