Home / 286,747.79-395,705.48-155,922.62

Finding the Fourth Proportional to 286,747.79, 395,705.48 and 155,922.62

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Solution

The fourth proportional to 286,747.79, 395,705.48 and 155,922.62 is: 215,169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,747.79 : 395,705.48 = 155,922.62 : x
  2. Step 2: Convert to fraction form
    286,747.79/395,705.48 = 155,922.62/x
  3. Step 3: Cross multiply
    286,747.79x = 395,705.48 × 155,922.62
  4. Step 4: Simplify right side
    286,747.79x = 61,699,432,431.82
  5. Step 5: Solve for x
    x = 61,699,432,431.82/286,747.79
  6. Step 6: Final answer
    x = 215,169.69

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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.