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Finding the Fourth Proportional to 329,088.58, 493,425.51 and 279,186.10

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Solution

The fourth proportional to 329,088.58, 493,425.51 and 279,186.10 is: 418,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,088.58 : 493,425.51 = 279,186.10 : x
  2. Step 2: Convert to fraction form
    329,088.58/493,425.51 = 279,186.10/x
  3. Step 3: Cross multiply
    329,088.58x = 493,425.51 × 279,186.10
  4. Step 4: Simplify right side
    329,088.58x = 137,757,543,777.41
  5. Step 5: Solve for x
    x = 137,757,543,777.41/329,088.58
  6. Step 6: Final answer
    x = 418,603.23

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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.