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Finding the Fourth Proportional to 341,980.45, 512,999.84 and 89,294.47

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Solution

The fourth proportional to 341,980.45, 512,999.84 and 89,294.47 is: 133,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,980.45 : 512,999.84 = 89,294.47 : x
  2. Step 2: Convert to fraction form
    341,980.45/512,999.84 = 89,294.47/x
  3. Step 3: Cross multiply
    341,980.45x = 512,999.84 × 89,294.47
  4. Step 4: Simplify right side
    341,980.45x = 45,808,048,822.88
  5. Step 5: Solve for x
    x = 45,808,048,822.88/341,980.45
  6. Step 6: Final answer
    x = 133,949.32

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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.