Home / 286,743.06-395,683.01-159,410.90

Finding the Fourth Proportional to 286,743.06, 395,683.01 and 159,410.90

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Solution

The fourth proportional to 286,743.06, 395,683.01 and 159,410.90 is: 219,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,743.06 : 395,683.01 = 159,410.90 : x
  2. Step 2: Convert to fraction form
    286,743.06/395,683.01 = 159,410.90/x
  3. Step 3: Cross multiply
    286,743.06x = 395,683.01 × 159,410.90
  4. Step 4: Simplify right side
    286,743.06x = 63,076,184,738.81
  5. Step 5: Solve for x
    x = 63,076,184,738.81/286,743.06
  6. Step 6: Final answer
    x = 219,974.58

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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.