Home / 383,214.98-528,837.20-208,784.32

Finding the Fourth Proportional to 383,214.98, 528,837.20 and 208,784.32

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Solution

The fourth proportional to 383,214.98, 528,837.20 and 208,784.32 is: 288,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,214.98 : 528,837.20 = 208,784.32 : x
  2. Step 2: Convert to fraction form
    383,214.98/528,837.20 = 208,784.32/x
  3. Step 3: Cross multiply
    383,214.98x = 528,837.20 × 208,784.32
  4. Step 4: Simplify right side
    383,214.98x = 110,412,914,784.04
  5. Step 5: Solve for x
    x = 110,412,914,784.04/383,214.98
  6. Step 6: Final answer
    x = 288,122.65

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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.