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Finding the Fourth Proportional to 247,349, 341,341.80 and 134,172.20

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Solution

The fourth proportional to 247,349, 341,341.80 and 134,172.20 is: 185,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,349 : 341,341.80 = 134,172.20 : x
  2. Step 2: Convert to fraction form
    247,349/341,341.80 = 134,172.20/x
  3. Step 3: Cross multiply
    247,349x = 341,341.80 × 134,172.20
  4. Step 4: Simplify right side
    247,349x = 45,798,580,257.96
  5. Step 5: Solve for x
    x = 45,798,580,257.96/247,349
  6. Step 6: Final answer
    x = 185,157.73

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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.