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Finding the Fourth Proportional to 439,950.21, 607,131.28 and 238,746.21

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Solution

The fourth proportional to 439,950.21, 607,131.28 and 238,746.21 is: 329,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,950.21 : 607,131.28 = 238,746.21 : x
  2. Step 2: Convert to fraction form
    439,950.21/607,131.28 = 238,746.21/x
  3. Step 3: Cross multiply
    439,950.21x = 607,131.28 × 238,746.21
  4. Step 4: Simplify right side
    439,950.21x = 144,950,292,072.45
  5. Step 5: Solve for x
    x = 144,950,292,072.45/439,950.21
  6. Step 6: Final answer
    x = 329,469.76

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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.