Home / 385,380.44-531,821.04-213,298.76

Finding the Fourth Proportional to 385,380.44, 531,821.04 and 213,298.76

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Solution

The fourth proportional to 385,380.44, 531,821.04 and 213,298.76 is: 294,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,380.44 : 531,821.04 = 213,298.76 : x
  2. Step 2: Convert to fraction form
    385,380.44/531,821.04 = 213,298.76/x
  3. Step 3: Cross multiply
    385,380.44x = 531,821.04 × 213,298.76
  4. Step 4: Simplify right side
    385,380.44x = 113,436,768,373.91
  5. Step 5: Solve for x
    x = 113,436,768,373.91/385,380.44
  6. Step 6: Final answer
    x = 294,350.09

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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.