Home / 659,362.26-989,192.57-210,108.72

Finding the Fourth Proportional to 659,362.26, 989,192.57 and 210,108.72

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Solution

The fourth proportional to 659,362.26, 989,192.57 and 210,108.72 is: 315,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,362.26 : 989,192.57 = 210,108.72 : x
  2. Step 2: Convert to fraction form
    659,362.26/989,192.57 = 210,108.72/x
  3. Step 3: Cross multiply
    659,362.26x = 989,192.57 × 210,108.72
  4. Step 4: Simplify right side
    659,362.26x = 207,837,983,665.67
  5. Step 5: Solve for x
    x = 207,837,983,665.67/659,362.26
  6. Step 6: Final answer
    x = 315,210.62

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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.