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Finding the Fourth Proportional to 203,441.54, 280,749.40 and 112,798.58

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Solution

The fourth proportional to 203,441.54, 280,749.40 and 112,798.58 is: 155,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,441.54 : 280,749.40 = 112,798.58 : x
  2. Step 2: Convert to fraction form
    203,441.54/280,749.40 = 112,798.58/x
  3. Step 3: Cross multiply
    203,441.54x = 280,749.40 × 112,798.58
  4. Step 4: Simplify right side
    203,441.54x = 31,668,133,655.85
  5. Step 5: Solve for x
    x = 31,668,133,655.85/203,441.54
  6. Step 6: Final answer
    x = 155,662.08

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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.