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Finding the Fourth Proportional to 439,235, 606,144.33 and 238,031

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Solution

The fourth proportional to 439,235, 606,144.33 and 238,031 is: 328,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,235 : 606,144.33 = 238,031 : x
  2. Step 2: Convert to fraction form
    439,235/606,144.33 = 238,031/x
  3. Step 3: Cross multiply
    439,235x = 606,144.33 × 238,031
  4. Step 4: Simplify right side
    439,235x = 144,281,141,014.23
  5. Step 5: Solve for x
    x = 144,281,141,014.23/439,235
  6. Step 6: Final answer
    x = 328,482.80

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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.