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Finding the Fourth Proportional to 659,650.50, 989,426.07 and 210,353.22

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Solution

The fourth proportional to 659,650.50, 989,426.07 and 210,353.22 is: 315,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,650.50 : 989,426.07 = 210,353.22 : x
  2. Step 2: Convert to fraction form
    659,650.50/989,426.07 = 210,353.22/x
  3. Step 3: Cross multiply
    659,650.50x = 989,426.07 × 210,353.22
  4. Step 4: Simplify right side
    659,650.50x = 208,128,959,776.45
  5. Step 5: Solve for x
    x = 208,128,959,776.45/659,650.50
  6. Step 6: Final answer
    x = 315,513.99

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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.