Home / 379,051.26-523,090.89-209,285.52

Finding the Fourth Proportional to 379,051.26, 523,090.89 and 209,285.52

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Solution

The fourth proportional to 379,051.26, 523,090.89 and 209,285.52 is: 288,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,051.26 : 523,090.89 = 209,285.52 : x
  2. Step 2: Convert to fraction form
    379,051.26/523,090.89 = 209,285.52/x
  3. Step 3: Cross multiply
    379,051.26x = 523,090.89 × 209,285.52
  4. Step 4: Simplify right side
    379,051.26x = 109,475,348,920.91
  5. Step 5: Solve for x
    x = 109,475,348,920.91/379,051.26
  6. Step 6: Final answer
    x = 288,814.10

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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.