Home / 212,815.42-318,434.60-170,567.36

Finding the Fourth Proportional to 212,815.42, 318,434.60 and 170,567.36

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Solution

The fourth proportional to 212,815.42, 318,434.60 and 170,567.36 is: 255,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,815.42 : 318,434.60 = 170,567.36 : x
  2. Step 2: Convert to fraction form
    212,815.42/318,434.60 = 170,567.36/x
  3. Step 3: Cross multiply
    212,815.42x = 318,434.60 × 170,567.36
  4. Step 4: Simplify right side
    212,815.42x = 54,314,549,054.66
  5. Step 5: Solve for x
    x = 54,314,549,054.66/212,815.42
  6. Step 6: Final answer
    x = 255,219.05

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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.