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Finding the Fourth Proportional to 379,558.01, 523,790.08 and 207,476.66

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Solution

The fourth proportional to 379,558.01, 523,790.08 and 207,476.66 is: 286,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,558.01 : 523,790.08 = 207,476.66 : x
  2. Step 2: Convert to fraction form
    379,558.01/523,790.08 = 207,476.66/x
  3. Step 3: Cross multiply
    379,558.01x = 523,790.08 × 207,476.66
  4. Step 4: Simplify right side
    379,558.01x = 108,674,216,339.53
  5. Step 5: Solve for x
    x = 108,674,216,339.53/379,558.01
  6. Step 6: Final answer
    x = 286,317.81

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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.