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Finding the Fourth Proportional to 437,099.07, 655,482.49 and 209,160.69

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Solution

The fourth proportional to 437,099.07, 655,482.49 and 209,160.69 is: 313,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,099.07 : 655,482.49 = 209,160.69 : x
  2. Step 2: Convert to fraction form
    437,099.07/655,482.49 = 209,160.69/x
  3. Step 3: Cross multiply
    437,099.07x = 655,482.49 × 209,160.69
  4. Step 4: Simplify right side
    437,099.07x = 137,101,169,891.32
  5. Step 5: Solve for x
    x = 137,101,169,891.32/437,099.07
  6. Step 6: Final answer
    x = 313,661.55

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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.