Home / 212,284.48-318,465.60-87,557.44

Finding the Fourth Proportional to 212,284.48, 318,465.60 and 87,557.44

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Solution

The fourth proportional to 212,284.48, 318,465.60 and 87,557.44 is: 131,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,284.48 : 318,465.60 = 87,557.44 : x
  2. Step 2: Convert to fraction form
    212,284.48/318,465.60 = 87,557.44/x
  3. Step 3: Cross multiply
    212,284.48x = 318,465.60 × 87,557.44
  4. Step 4: Simplify right side
    212,284.48x = 27,884,032,664.06
  5. Step 5: Solve for x
    x = 27,884,032,664.06/212,284.48
  6. Step 6: Final answer
    x = 131,352.20

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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.