Home / 380,063.80-524,496.30-210,309.88

Finding the Fourth Proportional to 380,063.80, 524,496.30 and 210,309.88

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Solution

The fourth proportional to 380,063.80, 524,496.30 and 210,309.88 is: 290,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,063.80 : 524,496.30 = 210,309.88 : x
  2. Step 2: Convert to fraction form
    380,063.80/524,496.30 = 210,309.88/x
  3. Step 3: Cross multiply
    380,063.80x = 524,496.30 × 210,309.88
  4. Step 4: Simplify right side
    380,063.80x = 110,306,753,913.44
  5. Step 5: Solve for x
    x = 110,306,753,913.44/380,063.80
  6. Step 6: Final answer
    x = 290,232.20

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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.