Home / 286,036.47-394,729.07-158,711.76

Finding the Fourth Proportional to 286,036.47, 394,729.07 and 158,711.76

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Solution

The fourth proportional to 286,036.47, 394,729.07 and 158,711.76 is: 219,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,036.47 : 394,729.07 = 158,711.76 : x
  2. Step 2: Convert to fraction form
    286,036.47/394,729.07 = 158,711.76/x
  3. Step 3: Cross multiply
    286,036.47x = 394,729.07 × 158,711.76
  4. Step 4: Simplify right side
    286,036.47x = 62,648,144,629.30
  5. Step 5: Solve for x
    x = 62,648,144,629.30/286,036.47
  6. Step 6: Final answer
    x = 219,021.53

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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.