Home / 190,923-286,312.50-153,390.84

Finding the Fourth Proportional to 190,923, 286,312.50 and 153,390.84

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Solution

The fourth proportional to 190,923, 286,312.50 and 153,390.84 is: 230,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,923 : 286,312.50 = 153,390.84 : x
  2. Step 2: Convert to fraction form
    190,923/286,312.50 = 153,390.84/x
  3. Step 3: Cross multiply
    190,923x = 286,312.50 × 153,390.84
  4. Step 4: Simplify right side
    190,923x = 43,917,714,877.50
  5. Step 5: Solve for x
    x = 43,917,714,877.50/190,923
  6. Step 6: Final answer
    x = 230,028.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.