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Finding the Fourth Proportional to 385,108.48, 531,583.52 and 264,648.64

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Solution

The fourth proportional to 385,108.48, 531,583.52 and 264,648.64 is: 365,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,108.48 : 531,583.52 = 264,648.64 : x
  2. Step 2: Convert to fraction form
    385,108.48/531,583.52 = 264,648.64/x
  3. Step 3: Cross multiply
    385,108.48x = 531,583.52 × 264,648.64
  4. Step 4: Simplify right side
    385,108.48x = 140,682,855,614.41
  5. Step 5: Solve for x
    x = 140,682,855,614.41/385,108.48
  6. Step 6: Final answer
    x = 365,307.08

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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.