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Finding the Fourth Proportional to 212,185.16, 318,281.69 and 169,868.73

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Solution

The fourth proportional to 212,185.16, 318,281.69 and 169,868.73 is: 254,806.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,185.16 : 318,281.69 = 169,868.73 : x
  2. Step 2: Convert to fraction form
    212,185.16/318,281.69 = 169,868.73/x
  3. Step 3: Cross multiply
    212,185.16x = 318,281.69 × 169,868.73
  4. Step 4: Simplify right side
    212,185.16x = 54,066,106,462.55
  5. Step 5: Solve for x
    x = 54,066,106,462.55/212,185.16
  6. Step 6: Final answer
    x = 254,806.26

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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.