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Finding the Fourth Proportional to 439,265.89, 658,900.79 and 214,643.98

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Solution

The fourth proportional to 439,265.89, 658,900.79 and 214,643.98 is: 321,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,265.89 : 658,900.79 = 214,643.98 : x
  2. Step 2: Convert to fraction form
    439,265.89/658,900.79 = 214,643.98/x
  3. Step 3: Cross multiply
    439,265.89x = 658,900.79 × 214,643.98
  4. Step 4: Simplify right side
    439,265.89x = 141,429,087,990.74
  5. Step 5: Solve for x
    x = 141,429,087,990.74/439,265.89
  6. Step 6: Final answer
    x = 321,966.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.