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Finding the Fourth Proportional to 528,144.80, 792,450.48 and 213,216.80

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Solution

The fourth proportional to 528,144.80, 792,450.48 and 213,216.80 is: 319,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,144.80 : 792,450.48 = 213,216.80 : x
  2. Step 2: Convert to fraction form
    528,144.80/792,450.48 = 213,216.80/x
  3. Step 3: Cross multiply
    528,144.80x = 792,450.48 × 213,216.80
  4. Step 4: Simplify right side
    528,144.80x = 168,963,755,504.06
  5. Step 5: Solve for x
    x = 168,963,755,504.06/528,144.80
  6. Step 6: Final answer
    x = 319,919.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.