Home / 212,824.80-318,848.40-173,167.20

Finding the Fourth Proportional to 212,824.80, 318,848.40 and 173,167.20

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Solution

The fourth proportional to 212,824.80, 318,848.40 and 173,167.20 is: 259,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,824.80 : 318,848.40 = 173,167.20 : x
  2. Step 2: Convert to fraction form
    212,824.80/318,848.40 = 173,167.20/x
  3. Step 3: Cross multiply
    212,824.80x = 318,848.40 × 173,167.20
  4. Step 4: Simplify right side
    212,824.80x = 55,214,084,652.48
  5. Step 5: Solve for x
    x = 55,214,084,652.48/212,824.80
  6. Step 6: Final answer
    x = 259,434.45

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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.