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Finding the Fourth Proportional to 357,720.98, 493,405.02 and 303,632.82

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Solution

The fourth proportional to 357,720.98, 493,405.02 and 303,632.82 is: 418,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,720.98 : 493,405.02 = 303,632.82 : x
  2. Step 2: Convert to fraction form
    357,720.98/493,405.02 = 303,632.82/x
  3. Step 3: Cross multiply
    357,720.98x = 493,405.02 × 303,632.82
  4. Step 4: Simplify right side
    357,720.98x = 149,813,957,624.76
  5. Step 5: Solve for x
    x = 149,813,957,624.76/357,720.98
  6. Step 6: Final answer
    x = 418,801.16

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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.