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Finding the Fourth Proportional to 439,639.35, 659,114.50 and 173,599

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Solution

The fourth proportional to 439,639.35, 659,114.50 and 173,599 is: 260,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,639.35 : 659,114.50 = 173,599 : x
  2. Step 2: Convert to fraction form
    439,639.35/659,114.50 = 173,599/x
  3. Step 3: Cross multiply
    439,639.35x = 659,114.50 × 173,599
  4. Step 4: Simplify right side
    439,639.35x = 114,421,618,085.50
  5. Step 5: Solve for x
    x = 114,421,618,085.50/439,639.35
  6. Step 6: Final answer
    x = 260,262.46

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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.