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Finding the Fourth Proportional to 259,234.40, 388,851.60 and 111,490.40

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Solution

The fourth proportional to 259,234.40, 388,851.60 and 111,490.40 is: 167,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,234.40 : 388,851.60 = 111,490.40 : x
  2. Step 2: Convert to fraction form
    259,234.40/388,851.60 = 111,490.40/x
  3. Step 3: Cross multiply
    259,234.40x = 388,851.60 × 111,490.40
  4. Step 4: Simplify right side
    259,234.40x = 43,353,220,424.64
  5. Step 5: Solve for x
    x = 43,353,220,424.64/259,234.40
  6. Step 6: Final answer
    x = 167,235.60

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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.