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Finding the Fourth Proportional to 250,509.44, 345,683.84 and 143,064.64

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Solution

The fourth proportional to 250,509.44, 345,683.84 and 143,064.64 is: 197,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,509.44 : 345,683.84 = 143,064.64 : x
  2. Step 2: Convert to fraction form
    250,509.44/345,683.84 = 143,064.64/x
  3. Step 3: Cross multiply
    250,509.44x = 345,683.84 × 143,064.64
  4. Step 4: Simplify right side
    250,509.44x = 49,455,134,123.42
  5. Step 5: Solve for x
    x = 49,455,134,123.42/250,509.44
  6. Step 6: Final answer
    x = 197,418.25

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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.