Home / 286,922.64-395,937.54-157,858.68

Finding the Fourth Proportional to 286,922.64, 395,937.54 and 157,858.68

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Solution

The fourth proportional to 286,922.64, 395,937.54 and 157,858.68 is: 217,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,922.64 : 395,937.54 = 157,858.68 : x
  2. Step 2: Convert to fraction form
    286,922.64/395,937.54 = 157,858.68/x
  3. Step 3: Cross multiply
    286,922.64x = 395,937.54 × 157,858.68
  4. Step 4: Simplify right side
    286,922.64x = 62,502,177,426.85
  5. Step 5: Solve for x
    x = 62,502,177,426.85/286,922.64
  6. Step 6: Final answer
    x = 217,836.34

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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.