Home / 286,291.80-395,045.51-158,942.79

Finding the Fourth Proportional to 286,291.80, 395,045.51 and 158,942.79

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Solution

The fourth proportional to 286,291.80, 395,045.51 and 158,942.79 is: 219,320.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,291.80 : 395,045.51 = 158,942.79 : x
  2. Step 2: Convert to fraction form
    286,291.80/395,045.51 = 158,942.79/x
  3. Step 3: Cross multiply
    286,291.80x = 395,045.51 × 158,942.79
  4. Step 4: Simplify right side
    286,291.80x = 62,789,634,741.66
  5. Step 5: Solve for x
    x = 62,789,634,741.66/286,291.80
  6. Step 6: Final answer
    x = 219,320.41

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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.