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Finding the Fourth Proportional to 379,424.88, 569,049.84 and 168,948

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Solution

The fourth proportional to 379,424.88, 569,049.84 and 168,948 is: 253,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,424.88 : 569,049.84 = 168,948 : x
  2. Step 2: Convert to fraction form
    379,424.88/569,049.84 = 168,948/x
  3. Step 3: Cross multiply
    379,424.88x = 569,049.84 × 168,948
  4. Step 4: Simplify right side
    379,424.88x = 96,139,832,368.32
  5. Step 5: Solve for x
    x = 96,139,832,368.32/379,424.88
  6. Step 6: Final answer
    x = 253,383.05

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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.