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Finding the Fourth Proportional to 289,570.52, 399,607.05 and 162,247.03

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Solution

The fourth proportional to 289,570.52, 399,607.05 and 162,247.03 is: 223,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,570.52 : 399,607.05 = 162,247.03 : x
  2. Step 2: Convert to fraction form
    289,570.52/399,607.05 = 162,247.03/x
  3. Step 3: Cross multiply
    289,570.52x = 399,607.05 × 162,247.03
  4. Step 4: Simplify right side
    289,570.52x = 64,835,056,638.97
  5. Step 5: Solve for x
    x = 64,835,056,638.97/289,570.52
  6. Step 6: Final answer
    x = 223,900.75

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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.