Home / 389,074.68-536,922.90-210,226.68

Finding the Fourth Proportional to 389,074.68, 536,922.90 and 210,226.68

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Solution

The fourth proportional to 389,074.68, 536,922.90 and 210,226.68 is: 290,112.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,074.68 : 536,922.90 = 210,226.68 : x
  2. Step 2: Convert to fraction form
    389,074.68/536,922.90 = 210,226.68/x
  3. Step 3: Cross multiply
    389,074.68x = 536,922.90 × 210,226.68
  4. Step 4: Simplify right side
    389,074.68x = 112,875,518,682.97
  5. Step 5: Solve for x
    x = 112,875,518,682.97/389,074.68
  6. Step 6: Final answer
    x = 290,112.73

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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.