Home / 298,849.12-412,364.40-168,000.90

Finding the Fourth Proportional to 298,849.12, 412,364.40 and 168,000.90

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Solution

The fourth proportional to 298,849.12, 412,364.40 and 168,000.90 is: 231,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,849.12 : 412,364.40 = 168,000.90 : x
  2. Step 2: Convert to fraction form
    298,849.12/412,364.40 = 168,000.90/x
  3. Step 3: Cross multiply
    298,849.12x = 412,364.40 × 168,000.90
  4. Step 4: Simplify right side
    298,849.12x = 69,277,590,327.96
  5. Step 5: Solve for x
    x = 69,277,590,327.96/298,849.12
  6. Step 6: Final answer
    x = 231,814.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.