Home / 439,125.35-605,985.09-248,134.64

Finding the Fourth Proportional to 439,125.35, 605,985.09 and 248,134.64

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Solution

The fourth proportional to 439,125.35, 605,985.09 and 248,134.64 is: 342,421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,125.35 : 605,985.09 = 248,134.64 : x
  2. Step 2: Convert to fraction form
    439,125.35/605,985.09 = 248,134.64/x
  3. Step 3: Cross multiply
    439,125.35x = 605,985.09 × 248,134.64
  4. Step 4: Simplify right side
    439,125.35x = 150,365,889,122.59
  5. Step 5: Solve for x
    x = 150,365,889,122.59/439,125.35
  6. Step 6: Final answer
    x = 342,421.34

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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.