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Finding the Fourth Proportional to 369,052.56, 509,330.18 and 225,907.20

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Solution

The fourth proportional to 369,052.56, 509,330.18 and 225,907.20 is: 311,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,052.56 : 509,330.18 = 225,907.20 : x
  2. Step 2: Convert to fraction form
    369,052.56/509,330.18 = 225,907.20/x
  3. Step 3: Cross multiply
    369,052.56x = 509,330.18 × 225,907.20
  4. Step 4: Simplify right side
    369,052.56x = 115,061,355,404.06
  5. Step 5: Solve for x
    x = 115,061,355,404.06/369,052.56
  6. Step 6: Final answer
    x = 311,774.98

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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.