Home / 378,653.26-522,533.09-208,887.34

Finding the Fourth Proportional to 378,653.26, 522,533.09 and 208,887.34

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Solution

The fourth proportional to 378,653.26, 522,533.09 and 208,887.34 is: 288,259.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,653.26 : 522,533.09 = 208,887.34 : x
  2. Step 2: Convert to fraction form
    378,653.26/522,533.09 = 208,887.34/x
  3. Step 3: Cross multiply
    378,653.26x = 522,533.09 × 208,887.34
  4. Step 4: Simplify right side
    378,653.26x = 109,150,547,232.08
  5. Step 5: Solve for x
    x = 109,150,547,232.08/378,653.26
  6. Step 6: Final answer
    x = 288,259.89

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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.