Home / 286,883.46-395,886.69-157,813.75

Finding the Fourth Proportional to 286,883.46, 395,886.69 and 157,813.75

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Solution

The fourth proportional to 286,883.46, 395,886.69 and 157,813.75 is: 217,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,883.46 : 395,886.69 = 157,813.75 : x
  2. Step 2: Convert to fraction form
    286,883.46/395,886.69 = 157,813.75/x
  3. Step 3: Cross multiply
    286,883.46x = 395,886.69 × 157,813.75
  4. Step 4: Simplify right side
    286,883.46x = 62,476,363,123.99
  5. Step 5: Solve for x
    x = 62,476,363,123.99/286,883.46
  6. Step 6: Final answer
    x = 217,776.11

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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.