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Finding the Fourth Proportional to 439,639.47, 659,114.69 and 173,599.11

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Solution

The fourth proportional to 439,639.47, 659,114.69 and 173,599.11 is: 260,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,639.47 : 659,114.69 = 173,599.11 : x
  2. Step 2: Convert to fraction form
    439,639.47/659,114.69 = 173,599.11/x
  3. Step 3: Cross multiply
    439,639.47x = 659,114.69 × 173,599.11
  4. Step 4: Simplify right side
    439,639.47x = 114,421,723,571.93
  5. Step 5: Solve for x
    x = 114,421,723,571.93/439,639.47
  6. Step 6: Final answer
    x = 260,262.63

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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.