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Finding the Fourth Proportional to 553,932.84, 831,039.06 and 154,573.26

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Solution

The fourth proportional to 553,932.84, 831,039.06 and 154,573.26 is: 231,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,932.84 : 831,039.06 = 154,573.26 : x
  2. Step 2: Convert to fraction form
    553,932.84/831,039.06 = 154,573.26/x
  3. Step 3: Cross multiply
    553,932.84x = 831,039.06 × 154,573.26
  4. Step 4: Simplify right side
    553,932.84x = 128,456,416,691.54
  5. Step 5: Solve for x
    x = 128,456,416,691.54/553,932.84
  6. Step 6: Final answer
    x = 231,898.90

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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.