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Finding the Fourth Proportional to 485,799.35, 670,404.30 and 270,953.33

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Solution

The fourth proportional to 485,799.35, 670,404.30 and 270,953.33 is: 373,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,799.35 : 670,404.30 = 270,953.33 : x
  2. Step 2: Convert to fraction form
    485,799.35/670,404.30 = 270,953.33/x
  3. Step 3: Cross multiply
    485,799.35x = 670,404.30 × 270,953.33
  4. Step 4: Simplify right side
    485,799.35x = 181,648,277,531.32
  5. Step 5: Solve for x
    x = 181,648,277,531.32/485,799.35
  6. Step 6: Final answer
    x = 373,916.26

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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.