Home / 203,121.37-280,307.33-112,477.33

Finding the Fourth Proportional to 203,121.37, 280,307.33 and 112,477.33

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Solution

The fourth proportional to 203,121.37, 280,307.33 and 112,477.33 is: 155,218.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,121.37 : 280,307.33 = 112,477.33 : x
  2. Step 2: Convert to fraction form
    203,121.37/280,307.33 = 112,477.33/x
  3. Step 3: Cross multiply
    203,121.37x = 280,307.33 × 112,477.33
  4. Step 4: Simplify right side
    203,121.37x = 31,528,221,688.67
  5. Step 5: Solve for x
    x = 31,528,221,688.67/203,121.37
  6. Step 6: Final answer
    x = 155,218.63

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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.