Home / 380,380.24-524,954.28-210,630.16

Finding the Fourth Proportional to 380,380.24, 524,954.28 and 210,630.16

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Solution

The fourth proportional to 380,380.24, 524,954.28 and 210,630.16 is: 290,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,380.24 : 524,954.28 = 210,630.16 : x
  2. Step 2: Convert to fraction form
    380,380.24/524,954.28 = 210,630.16/x
  3. Step 3: Cross multiply
    380,380.24x = 524,954.28 × 210,630.16
  4. Step 4: Simplify right side
    380,380.24x = 110,571,203,989.09
  5. Step 5: Solve for x
    x = 110,571,203,989.09/380,380.24
  6. Step 6: Final answer
    x = 290,685.98

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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.