Home / 402,236.37-555,084.09-220,947.75

Finding the Fourth Proportional to 402,236.37, 555,084.09 and 220,947.75

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Solution

The fourth proportional to 402,236.37, 555,084.09 and 220,947.75 is: 304,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,236.37 : 555,084.09 = 220,947.75 : x
  2. Step 2: Convert to fraction form
    402,236.37/555,084.09 = 220,947.75/x
  3. Step 3: Cross multiply
    402,236.37x = 555,084.09 × 220,947.75
  4. Step 4: Simplify right side
    402,236.37x = 122,644,580,746.30
  5. Step 5: Solve for x
    x = 122,644,580,746.30/402,236.37
  6. Step 6: Final answer
    x = 304,906.74

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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.