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Finding the Fourth Proportional to 152,361.36, 210,228.84 and 84,375.04

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Solution

The fourth proportional to 152,361.36, 210,228.84 and 84,375.04 is: 116,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,361.36 : 210,228.84 = 84,375.04 : x
  2. Step 2: Convert to fraction form
    152,361.36/210,228.84 = 84,375.04/x
  3. Step 3: Cross multiply
    152,361.36x = 210,228.84 × 84,375.04
  4. Step 4: Simplify right side
    152,361.36x = 17,738,066,784.15
  5. Step 5: Solve for x
    x = 17,738,066,784.15/152,361.36
  6. Step 6: Final answer
    x = 116,421.03

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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.