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Finding the Fourth Proportional to 517,775.50, 776,942.28 and 218,463.52

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Solution

The fourth proportional to 517,775.50, 776,942.28 and 218,463.52 is: 327,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,775.50 : 776,942.28 = 218,463.52 : x
  2. Step 2: Convert to fraction form
    517,775.50/776,942.28 = 218,463.52/x
  3. Step 3: Cross multiply
    517,775.50x = 776,942.28 × 218,463.52
  4. Step 4: Simplify right side
    517,775.50x = 169,733,545,325.63
  5. Step 5: Solve for x
    x = 169,733,545,325.63/517,775.50
  6. Step 6: Final answer
    x = 327,813.01

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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.