Home / 378,748.20-522,683.37-208,993.26

Finding the Fourth Proportional to 378,748.20, 522,683.37 and 208,993.26

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Solution

The fourth proportional to 378,748.20, 522,683.37 and 208,993.26 is: 288,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,748.20 : 522,683.37 = 208,993.26 : x
  2. Step 2: Convert to fraction form
    378,748.20/522,683.37 = 208,993.26/x
  3. Step 3: Cross multiply
    378,748.20x = 522,683.37 × 208,993.26
  4. Step 4: Simplify right side
    378,748.20x = 109,237,301,444.09
  5. Step 5: Solve for x
    x = 109,237,301,444.09/378,748.20
  6. Step 6: Final answer
    x = 288,416.69

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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.