Home / 383,311.49-528,970.01-208,880.51

Finding the Fourth Proportional to 383,311.49, 528,970.01 and 208,880.51

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Solution

The fourth proportional to 383,311.49, 528,970.01 and 208,880.51 is: 288,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,311.49 : 528,970.01 = 208,880.51 : x
  2. Step 2: Convert to fraction form
    383,311.49/528,970.01 = 208,880.51/x
  3. Step 3: Cross multiply
    383,311.49x = 528,970.01 × 208,880.51
  4. Step 4: Simplify right side
    383,311.49x = 110,491,525,741.53
  5. Step 5: Solve for x
    x = 110,491,525,741.53/383,311.49
  6. Step 6: Final answer
    x = 288,255.19

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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.