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Finding the Fourth Proportional to 286,863.30, 430,149.15 and 168,570.90

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Solution

The fourth proportional to 286,863.30, 430,149.15 and 168,570.90 is: 252,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,863.30 : 430,149.15 = 168,570.90 : x
  2. Step 2: Convert to fraction form
    286,863.30/430,149.15 = 168,570.90/x
  3. Step 3: Cross multiply
    286,863.30x = 430,149.15 × 168,570.90
  4. Step 4: Simplify right side
    286,863.30x = 72,510,629,349.74
  5. Step 5: Solve for x
    x = 72,510,629,349.74/286,863.30
  6. Step 6: Final answer
    x = 252,770.67

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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.