Home / 553,942.66-831,054.24-154,583.38

Finding the Fourth Proportional to 553,942.66, 831,054.24 and 154,583.38

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Solution

The fourth proportional to 553,942.66, 831,054.24 and 154,583.38 is: 231,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,942.66 : 831,054.24 = 154,583.38 : x
  2. Step 2: Convert to fraction form
    553,942.66/831,054.24 = 154,583.38/x
  3. Step 3: Cross multiply
    553,942.66x = 831,054.24 × 154,583.38
  4. Step 4: Simplify right side
    553,942.66x = 128,467,173,382.53
  5. Step 5: Solve for x
    x = 128,467,173,382.53/553,942.66
  6. Step 6: Final answer
    x = 231,914.21

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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.