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Finding the Fourth Proportional to 439,888.50, 607,046.13 and 238,684.50

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Solution

The fourth proportional to 439,888.50, 607,046.13 and 238,684.50 is: 329,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,888.50 : 607,046.13 = 238,684.50 : x
  2. Step 2: Convert to fraction form
    439,888.50/607,046.13 = 238,684.50/x
  3. Step 3: Cross multiply
    439,888.50x = 607,046.13 × 238,684.50
  4. Step 4: Simplify right side
    439,888.50x = 144,892,502,015.99
  5. Step 5: Solve for x
    x = 144,892,502,015.99/439,888.50
  6. Step 6: Final answer
    x = 329,384.61

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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.