Home / 380,131.31-524,581.21-210,376.37

Finding the Fourth Proportional to 380,131.31, 524,581.21 and 210,376.37

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Solution

The fourth proportional to 380,131.31, 524,581.21 and 210,376.37 is: 290,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,131.31 : 524,581.21 = 210,376.37 : x
  2. Step 2: Convert to fraction form
    380,131.31/524,581.21 = 210,376.37/x
  3. Step 3: Cross multiply
    380,131.31x = 524,581.21 × 210,376.37
  4. Step 4: Simplify right side
    380,131.31x = 110,359,492,304.43
  5. Step 5: Solve for x
    x = 110,359,492,304.43/380,131.31
  6. Step 6: Final answer
    x = 290,319.39

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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.