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Finding the Fourth Proportional to 172,000.40, 258,000.60 and 160,190.60

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Solution

The fourth proportional to 172,000.40, 258,000.60 and 160,190.60 is: 240,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,000.40 : 258,000.60 = 160,190.60 : x
  2. Step 2: Convert to fraction form
    172,000.40/258,000.60 = 160,190.60/x
  3. Step 3: Cross multiply
    172,000.40x = 258,000.60 × 160,190.60
  4. Step 4: Simplify right side
    172,000.40x = 41,329,270,914.36
  5. Step 5: Solve for x
    x = 41,329,270,914.36/172,000.40
  6. Step 6: Final answer
    x = 240,285.90

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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.