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Finding the Fourth Proportional to 379,969.56, 524,312.52 and 210,180.60

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Solution

The fourth proportional to 379,969.56, 524,312.52 and 210,180.60 is: 290,024.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,969.56 : 524,312.52 = 210,180.60 : x
  2. Step 2: Convert to fraction form
    379,969.56/524,312.52 = 210,180.60/x
  3. Step 3: Cross multiply
    379,969.56x = 524,312.52 × 210,180.60
  4. Step 4: Simplify right side
    379,969.56x = 110,200,320,041.11
  5. Step 5: Solve for x
    x = 110,200,320,041.11/379,969.56
  6. Step 6: Final answer
    x = 290,024.07

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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.