Home / 285,816.20-428,432.70-167,426.60

Finding the Fourth Proportional to 285,816.20, 428,432.70 and 167,426.60

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Solution

The fourth proportional to 285,816.20, 428,432.70 and 167,426.60 is: 250,969.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,816.20 : 428,432.70 = 167,426.60 : x
  2. Step 2: Convert to fraction form
    285,816.20/428,432.70 = 167,426.60/x
  3. Step 3: Cross multiply
    285,816.20x = 428,432.70 × 167,426.60
  4. Step 4: Simplify right side
    285,816.20x = 71,731,030,289.82
  5. Step 5: Solve for x
    x = 71,731,030,289.82/285,816.20
  6. Step 6: Final answer
    x = 250,969.09

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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.