Home / 228,235.32-314,928-143,467.20

Finding the Fourth Proportional to 228,235.32, 314,928 and 143,467.20

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Solution

The fourth proportional to 228,235.32, 314,928 and 143,467.20 is: 197,961.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,235.32 : 314,928 = 143,467.20 : x
  2. Step 2: Convert to fraction form
    228,235.32/314,928 = 143,467.20/x
  3. Step 3: Cross multiply
    228,235.32x = 314,928 × 143,467.20
  4. Step 4: Simplify right side
    228,235.32x = 45,181,838,361.60
  5. Step 5: Solve for x
    x = 45,181,838,361.60/228,235.32
  6. Step 6: Final answer
    x = 197,961.64

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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.