Home / 383,150.50-528,764.09-213,384.62

Finding the Fourth Proportional to 383,150.50, 528,764.09 and 213,384.62

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Solution

The fourth proportional to 383,150.50, 528,764.09 and 213,384.62 is: 294,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,150.50 : 528,764.09 = 213,384.62 : x
  2. Step 2: Convert to fraction form
    383,150.50/528,764.09 = 213,384.62/x
  3. Step 3: Cross multiply
    383,150.50x = 528,764.09 × 213,384.62
  4. Step 4: Simplify right side
    383,150.50x = 112,830,124,669.28
  5. Step 5: Solve for x
    x = 112,830,124,669.28/383,150.50
  6. Step 6: Final answer
    x = 294,479.91

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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.