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Finding the Fourth Proportional to 344,549.60, 515,949.60 and 328,803.20

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Solution

The fourth proportional to 344,549.60, 515,949.60 and 328,803.20 is: 492,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,549.60 : 515,949.60 = 328,803.20 : x
  2. Step 2: Convert to fraction form
    344,549.60/515,949.60 = 328,803.20/x
  3. Step 3: Cross multiply
    344,549.60x = 515,949.60 × 328,803.20
  4. Step 4: Simplify right side
    344,549.60x = 169,645,879,518.72
  5. Step 5: Solve for x
    x = 169,645,879,518.72/344,549.60
  6. Step 6: Final answer
    x = 492,369.98

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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.