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Finding the Fourth Proportional to 247,201.70, 370,802.55 and 89,435.30

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Solution

The fourth proportional to 247,201.70, 370,802.55 and 89,435.30 is: 134,152.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.70 : 370,802.55 = 89,435.30 : x
  2. Step 2: Convert to fraction form
    247,201.70/370,802.55 = 89,435.30/x
  3. Step 3: Cross multiply
    247,201.70x = 370,802.55 × 89,435.30
  4. Step 4: Simplify right side
    247,201.70x = 33,162,837,300.02
  5. Step 5: Solve for x
    x = 33,162,837,300.02/247,201.70
  6. Step 6: Final answer
    x = 134,152.95

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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.