Home / 439,948.21-607,128.52-238,744.21

Finding the Fourth Proportional to 439,948.21, 607,128.52 and 238,744.21

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Solution

The fourth proportional to 439,948.21, 607,128.52 and 238,744.21 is: 329,467.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,948.21 : 607,128.52 = 238,744.21 : x
  2. Step 2: Convert to fraction form
    439,948.21/607,128.52 = 238,744.21/x
  3. Step 3: Cross multiply
    439,948.21x = 607,128.52 × 238,744.21
  4. Step 4: Simplify right side
    439,948.21x = 144,948,415,840.23
  5. Step 5: Solve for x
    x = 144,948,415,840.23/439,948.21
  6. Step 6: Final answer
    x = 329,467.00

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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.