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Finding the Fourth Proportional to 329,098.53, 493,315.43 and 129,558.95

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Solution

The fourth proportional to 329,098.53, 493,315.43 and 129,558.95 is: 194,207.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,098.53 : 493,315.43 = 129,558.95 : x
  2. Step 2: Convert to fraction form
    329,098.53/493,315.43 = 129,558.95/x
  3. Step 3: Cross multiply
    329,098.53x = 493,315.43 × 129,558.95
  4. Step 4: Simplify right side
    329,098.53x = 63,913,426,015.23
  5. Step 5: Solve for x
    x = 63,913,426,015.23/329,098.53
  6. Step 6: Final answer
    x = 194,207.57

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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.