Home / 209,005.53-313,632.63-145,013.91

Finding the Fourth Proportional to 209,005.53, 313,632.63 and 145,013.91

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Solution

The fourth proportional to 209,005.53, 313,632.63 and 145,013.91 is: 217,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,005.53 : 313,632.63 = 145,013.91 : x
  2. Step 2: Convert to fraction form
    209,005.53/313,632.63 = 145,013.91/x
  3. Step 3: Cross multiply
    209,005.53x = 313,632.63 × 145,013.91
  4. Step 4: Simplify right side
    209,005.53x = 45,481,093,979.88
  5. Step 5: Solve for x
    x = 45,481,093,979.88/209,005.53
  6. Step 6: Final answer
    x = 217,607.13

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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.