Home / 659,440.58-989,142.32-210,188.36

Finding the Fourth Proportional to 659,440.58, 989,142.32 and 210,188.36

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Solution

The fourth proportional to 659,440.58, 989,142.32 and 210,188.36 is: 315,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,440.58 : 989,142.32 = 210,188.36 : x
  2. Step 2: Convert to fraction form
    659,440.58/989,142.32 = 210,188.36/x
  3. Step 3: Cross multiply
    659,440.58x = 989,142.32 × 210,188.36
  4. Step 4: Simplify right side
    659,440.58x = 207,906,205,045.72
  5. Step 5: Solve for x
    x = 207,906,205,045.72/659,440.58
  6. Step 6: Final answer
    x = 315,276.63

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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.