Home / 378,746.64-522,669.24-208,980.90

Finding the Fourth Proportional to 378,746.64, 522,669.24 and 208,980.90

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Solution

The fourth proportional to 378,746.64, 522,669.24 and 208,980.90 is: 288,393.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,746.64 : 522,669.24 = 208,980.90 : x
  2. Step 2: Convert to fraction form
    378,746.64/522,669.24 = 208,980.90/x
  3. Step 3: Cross multiply
    378,746.64x = 522,669.24 × 208,980.90
  4. Step 4: Simplify right side
    378,746.64x = 109,227,888,177.52
  5. Step 5: Solve for x
    x = 109,227,888,177.52/378,746.64
  6. Step 6: Final answer
    x = 288,393.02

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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.