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Finding the Fourth Proportional to 318,077.68, 438,947.52 and 174,834.64

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Solution

The fourth proportional to 318,077.68, 438,947.52 and 174,834.64 is: 241,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,077.68 : 438,947.52 = 174,834.64 : x
  2. Step 2: Convert to fraction form
    318,077.68/438,947.52 = 174,834.64/x
  3. Step 3: Cross multiply
    318,077.68x = 438,947.52 × 174,834.64
  4. Step 4: Simplify right side
    318,077.68x = 76,743,231,638.09
  5. Step 5: Solve for x
    x = 76,743,231,638.09/318,077.68
  6. Step 6: Final answer
    x = 241,271.98

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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.