Home / 383,275.44-528,946.74-213,515.64

Finding the Fourth Proportional to 383,275.44, 528,946.74 and 213,515.64

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Solution

The fourth proportional to 383,275.44, 528,946.74 and 213,515.64 is: 294,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,275.44 : 528,946.74 = 213,515.64 : x
  2. Step 2: Convert to fraction form
    383,275.44/528,946.74 = 213,515.64/x
  3. Step 3: Cross multiply
    383,275.44x = 528,946.74 × 213,515.64
  4. Step 4: Simplify right side
    383,275.44x = 112,938,401,717.01
  5. Step 5: Solve for x
    x = 112,938,401,717.01/383,275.44
  6. Step 6: Final answer
    x = 294,666.42

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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.