Home / 286,763.07-395,688.69-165,915.60

Finding the Fourth Proportional to 286,763.07, 395,688.69 and 165,915.60

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Solution

The fourth proportional to 286,763.07, 395,688.69 and 165,915.60 is: 228,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,763.07 : 395,688.69 = 165,915.60 : x
  2. Step 2: Convert to fraction form
    286,763.07/395,688.69 = 165,915.60/x
  3. Step 3: Cross multiply
    286,763.07x = 395,688.69 × 165,915.60
  4. Step 4: Simplify right side
    286,763.07x = 65,650,926,414.56
  5. Step 5: Solve for x
    x = 65,650,926,414.56/286,763.07
  6. Step 6: Final answer
    x = 228,937.87

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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.