Home / 236,228.94-354,338.55-78,458.76

Finding the Fourth Proportional to 236,228.94, 354,338.55 and 78,458.76

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Solution

The fourth proportional to 236,228.94, 354,338.55 and 78,458.76 is: 117,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,228.94 : 354,338.55 = 78,458.76 : x
  2. Step 2: Convert to fraction form
    236,228.94/354,338.55 = 78,458.76/x
  3. Step 3: Cross multiply
    236,228.94x = 354,338.55 × 78,458.76
  4. Step 4: Simplify right side
    236,228.94x = 27,800,963,253.20
  5. Step 5: Solve for x
    x = 27,800,963,253.20/236,228.94
  6. Step 6: Final answer
    x = 117,686.53

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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.