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Finding the Fourth Proportional to 383,809.39, 574,599 and 223,395.68

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Solution

The fourth proportional to 383,809.39, 574,599 and 223,395.68 is: 334,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,809.39 : 574,599 = 223,395.68 : x
  2. Step 2: Convert to fraction form
    383,809.39/574,599 = 223,395.68/x
  3. Step 3: Cross multiply
    383,809.39x = 574,599 × 223,395.68
  4. Step 4: Simplify right side
    383,809.39x = 128,362,934,332.32
  5. Step 5: Solve for x
    x = 128,362,934,332.32/383,809.39
  6. Step 6: Final answer
    x = 334,444.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.