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Finding the Fourth Proportional to 380,091.42, 524,504.43 and 210,315.42

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Solution

The fourth proportional to 380,091.42, 524,504.43 and 210,315.42 is: 290,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,091.42 : 524,504.43 = 210,315.42 : x
  2. Step 2: Convert to fraction form
    380,091.42/524,504.43 = 210,315.42/x
  3. Step 3: Cross multiply
    380,091.42x = 524,504.43 × 210,315.42
  4. Step 4: Simplify right side
    380,091.42x = 110,311,369,487.31
  5. Step 5: Solve for x
    x = 110,311,369,487.31/380,091.42
  6. Step 6: Final answer
    x = 290,223.26

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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.