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Finding the Fourth Proportional to 247,112.70, 370,669.05 and 89,346.30

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Solution

The fourth proportional to 247,112.70, 370,669.05 and 89,346.30 is: 134,019.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,112.70 : 370,669.05 = 89,346.30 : x
  2. Step 2: Convert to fraction form
    247,112.70/370,669.05 = 89,346.30/x
  3. Step 3: Cross multiply
    247,112.70x = 370,669.05 × 89,346.30
  4. Step 4: Simplify right side
    247,112.70x = 33,117,908,142.02
  5. Step 5: Solve for x
    x = 33,117,908,142.02/247,112.70
  6. Step 6: Final answer
    x = 134,019.45

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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.