Home / 319,083.40-478,511.70-141,272.20

Finding the Fourth Proportional to 319,083.40, 478,511.70 and 141,272.20

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Solution

The fourth proportional to 319,083.40, 478,511.70 and 141,272.20 is: 211,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,083.40 : 478,511.70 = 141,272.20 : x
  2. Step 2: Convert to fraction form
    319,083.40/478,511.70 = 141,272.20/x
  3. Step 3: Cross multiply
    319,083.40x = 478,511.70 × 141,272.20
  4. Step 4: Simplify right side
    319,083.40x = 67,600,400,584.74
  5. Step 5: Solve for x
    x = 67,600,400,584.74/319,083.40
  6. Step 6: Final answer
    x = 211,858.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.