Home / 286,938.23-395,977.77-157,878.38

Finding the Fourth Proportional to 286,938.23, 395,977.77 and 157,878.38

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Solution

The fourth proportional to 286,938.23, 395,977.77 and 157,878.38 is: 217,873.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,938.23 : 395,977.77 = 157,878.38 : x
  2. Step 2: Convert to fraction form
    286,938.23/395,977.77 = 157,878.38/x
  3. Step 3: Cross multiply
    286,938.23x = 395,977.77 × 157,878.38
  4. Step 4: Simplify right side
    286,938.23x = 62,516,329,833.56
  5. Step 5: Solve for x
    x = 62,516,329,833.56/286,938.23
  6. Step 6: Final answer
    x = 217,873.83

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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.