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Finding the Fourth Proportional to 383,529.99, 529,271.97 and 213,760.47

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Solution

The fourth proportional to 383,529.99, 529,271.97 and 213,760.47 is: 294,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,529.99 : 529,271.97 = 213,760.47 : x
  2. Step 2: Convert to fraction form
    383,529.99/529,271.97 = 213,760.47/x
  3. Step 3: Cross multiply
    383,529.99x = 529,271.97 × 213,760.47
  4. Step 4: Simplify right side
    383,529.99x = 113,137,421,349.86
  5. Step 5: Solve for x
    x = 113,137,421,349.86/383,529.99
  6. Step 6: Final answer
    x = 294,989.77

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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.