Home / 439,129.32-605,990.50-248,138.60

Finding the Fourth Proportional to 439,129.32, 605,990.50 and 248,138.60

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Solution

The fourth proportional to 439,129.32, 605,990.50 and 248,138.60 is: 342,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,129.32 : 605,990.50 = 248,138.60 : x
  2. Step 2: Convert to fraction form
    439,129.32/605,990.50 = 248,138.60/x
  3. Step 3: Cross multiply
    439,129.32x = 605,990.50 × 248,138.60
  4. Step 4: Simplify right side
    439,129.32x = 150,369,634,283.30
  5. Step 5: Solve for x
    x = 150,369,634,283.30/439,129.32
  6. Step 6: Final answer
    x = 342,426.77

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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.