Home / 439,939.20-607,116.08-238,735.20

Finding the Fourth Proportional to 439,939.20, 607,116.08 and 238,735.20

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Solution

The fourth proportional to 439,939.20, 607,116.08 and 238,735.20 is: 329,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,939.20 : 607,116.08 = 238,735.20 : x
  2. Step 2: Convert to fraction form
    439,939.20/607,116.08 = 238,735.20/x
  3. Step 3: Cross multiply
    439,939.20x = 607,116.08 × 238,735.20
  4. Step 4: Simplify right side
    439,939.20x = 144,939,978,782.02
  5. Step 5: Solve for x
    x = 144,939,978,782.02/439,939.20
  6. Step 6: Final answer
    x = 329,454.57

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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.