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Finding the Fourth Proportional to 371,232.86, 512,309.02 and 210,087.86

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Solution

The fourth proportional to 371,232.86, 512,309.02 and 210,087.86 is: 289,925.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,232.86 : 512,309.02 = 210,087.86 : x
  2. Step 2: Convert to fraction form
    371,232.86/512,309.02 = 210,087.86/x
  3. Step 3: Cross multiply
    371,232.86x = 512,309.02 × 210,087.86
  4. Step 4: Simplify right side
    371,232.86x = 107,629,905,670.50
  5. Step 5: Solve for x
    x = 107,629,905,670.50/371,232.86
  6. Step 6: Final answer
    x = 289,925.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.