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Finding the Fourth Proportional to 379,886.04, 524,215.08 and 210,123

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Solution

The fourth proportional to 379,886.04, 524,215.08 and 210,123 is: 289,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,886.04 : 524,215.08 = 210,123 : x
  2. Step 2: Convert to fraction form
    379,886.04/524,215.08 = 210,123/x
  3. Step 3: Cross multiply
    379,886.04x = 524,215.08 × 210,123
  4. Step 4: Simplify right side
    379,886.04x = 110,149,645,254.84
  5. Step 5: Solve for x
    x = 110,149,645,254.84/379,886.04
  6. Step 6: Final answer
    x = 289,954.44

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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.