Home / 286,731.29-395,714.38-157,692.49

Finding the Fourth Proportional to 286,731.29, 395,714.38 and 157,692.49

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Solution

The fourth proportional to 286,731.29, 395,714.38 and 157,692.49 is: 217,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,731.29 : 395,714.38 = 157,692.49 : x
  2. Step 2: Convert to fraction form
    286,731.29/395,714.38 = 157,692.49/x
  3. Step 3: Cross multiply
    286,731.29x = 395,714.38 × 157,692.49
  4. Step 4: Simplify right side
    286,731.29x = 62,401,184,823.16
  5. Step 5: Solve for x
    x = 62,401,184,823.16/286,731.29
  6. Step 6: Final answer
    x = 217,629.49

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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.