Home / 310,220.02-428,092.32-189,563.23

Finding the Fourth Proportional to 310,220.02, 428,092.32 and 189,563.23

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Solution

The fourth proportional to 310,220.02, 428,092.32 and 189,563.23 is: 261,590.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,220.02 : 428,092.32 = 189,563.23 : x
  2. Step 2: Convert to fraction form
    310,220.02/428,092.32 = 189,563.23/x
  3. Step 3: Cross multiply
    310,220.02x = 428,092.32 × 189,563.23
  4. Step 4: Simplify right side
    310,220.02x = 81,150,562,917.39
  5. Step 5: Solve for x
    x = 81,150,562,917.39/310,220.02
  6. Step 6: Final answer
    x = 261,590.35

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1.5x scale

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.