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Finding the Fourth Proportional to 371,607.51, 512,815.53 and 201,842.85

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Solution

The fourth proportional to 371,607.51, 512,815.53 and 201,842.85 is: 278,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,607.51 : 512,815.53 = 201,842.85 : x
  2. Step 2: Convert to fraction form
    371,607.51/512,815.53 = 201,842.85/x
  3. Step 3: Cross multiply
    371,607.51x = 512,815.53 × 201,842.85
  4. Step 4: Simplify right side
    371,607.51x = 103,508,148,099.46
  5. Step 5: Solve for x
    x = 103,508,148,099.46/371,607.51
  6. Step 6: Final answer
    x = 278,541.59

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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.