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Finding the Fourth Proportional to 303,970.98, 455,271.18 and 146,317.44

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Solution

The fourth proportional to 303,970.98, 455,271.18 and 146,317.44 is: 219,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,970.98 : 455,271.18 = 146,317.44 : x
  2. Step 2: Convert to fraction form
    303,970.98/455,271.18 = 146,317.44/x
  3. Step 3: Cross multiply
    303,970.98x = 455,271.18 × 146,317.44
  4. Step 4: Simplify right side
    303,970.98x = 66,614,113,563.38
  5. Step 5: Solve for x
    x = 66,614,113,563.38/303,970.98
  6. Step 6: Final answer
    x = 219,146.29

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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.