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Finding the Fourth Proportional to 383,240.84, 528,873.32 and 230,281.59

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Solution

The fourth proportional to 383,240.84, 528,873.32 and 230,281.59 is: 317,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,240.84 : 528,873.32 = 230,281.59 : x
  2. Step 2: Convert to fraction form
    383,240.84/528,873.32 = 230,281.59/x
  3. Step 3: Cross multiply
    383,240.84x = 528,873.32 × 230,281.59
  4. Step 4: Simplify right side
    383,240.84x = 121,789,786,529.64
  5. Step 5: Solve for x
    x = 121,789,786,529.64/383,240.84
  6. Step 6: Final answer
    x = 317,789.16

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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.