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Finding the Fourth Proportional to 286,195.68, 394,952.64 and 158,883.36

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Solution

The fourth proportional to 286,195.68, 394,952.64 and 158,883.36 is: 219,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,195.68 : 394,952.64 = 158,883.36 : x
  2. Step 2: Convert to fraction form
    286,195.68/394,952.64 = 158,883.36/x
  3. Step 3: Cross multiply
    286,195.68x = 394,952.64 × 158,883.36
  4. Step 4: Simplify right side
    286,195.68x = 62,751,402,484.07
  5. Step 5: Solve for x
    x = 62,751,402,484.07/286,195.68
  6. Step 6: Final answer
    x = 219,260.48

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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.