Home / 439,948.70-607,129.21-238,744.70

Finding the Fourth Proportional to 439,948.70, 607,129.21 and 238,744.70

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Solution

The fourth proportional to 439,948.70, 607,129.21 and 238,744.70 is: 329,467.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,948.70 : 607,129.21 = 238,744.70 : x
  2. Step 2: Convert to fraction form
    439,948.70/607,129.21 = 238,744.70/x
  3. Step 3: Cross multiply
    439,948.70x = 607,129.21 × 238,744.70
  4. Step 4: Simplify right side
    439,948.70x = 144,948,881,102.69
  5. Step 5: Solve for x
    x = 144,948,881,102.69/439,948.70
  6. Step 6: Final answer
    x = 329,467.69

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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.