Home / 212,485.04-318,610.90-145,941.92

Finding the Fourth Proportional to 212,485.04, 318,610.90 and 145,941.92

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Solution

The fourth proportional to 212,485.04, 318,610.90 and 145,941.92 is: 218,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,485.04 : 318,610.90 = 145,941.92 : x
  2. Step 2: Convert to fraction form
    212,485.04/318,610.90 = 145,941.92/x
  3. Step 3: Cross multiply
    212,485.04x = 318,610.90 × 145,941.92
  4. Step 4: Simplify right side
    212,485.04x = 46,498,686,478.93
  5. Step 5: Solve for x
    x = 46,498,686,478.93/212,485.04
  6. Step 6: Final answer
    x = 218,832.75

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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.