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Finding the Fourth Proportional to 379,651.29, 524,050.71 and 218,570.53

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Solution

The fourth proportional to 379,651.29, 524,050.71 and 218,570.53 is: 301,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,651.29 : 524,050.71 = 218,570.53 : x
  2. Step 2: Convert to fraction form
    379,651.29/524,050.71 = 218,570.53/x
  3. Step 3: Cross multiply
    379,651.29x = 524,050.71 × 218,570.53
  4. Step 4: Simplify right side
    379,651.29x = 114,542,041,431.58
  5. Step 5: Solve for x
    x = 114,542,041,431.58/379,651.29
  6. Step 6: Final answer
    x = 301,703.29

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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.