Home / 212,815.54-318,434.79-170,567.49

Finding the Fourth Proportional to 212,815.54, 318,434.79 and 170,567.49

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Solution

The fourth proportional to 212,815.54, 318,434.79 and 170,567.49 is: 255,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,815.54 : 318,434.79 = 170,567.49 : x
  2. Step 2: Convert to fraction form
    212,815.54/318,434.79 = 170,567.49/x
  3. Step 3: Cross multiply
    212,815.54x = 318,434.79 × 170,567.49
  4. Step 4: Simplify right side
    212,815.54x = 54,314,620,840.38
  5. Step 5: Solve for x
    x = 54,314,620,840.38/212,815.54
  6. Step 6: Final answer
    x = 255,219.24

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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.