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Finding the Fourth Proportional to 173,208.60, 259,569.90 and 137,730.60

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Solution

The fourth proportional to 173,208.60, 259,569.90 and 137,730.60 is: 206,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,208.60 : 259,569.90 = 137,730.60 : x
  2. Step 2: Convert to fraction form
    173,208.60/259,569.90 = 137,730.60/x
  3. Step 3: Cross multiply
    173,208.60x = 259,569.90 × 137,730.60
  4. Step 4: Simplify right side
    173,208.60x = 35,750,718,068.94
  5. Step 5: Solve for x
    x = 35,750,718,068.94/173,208.60
  6. Step 6: Final answer
    x = 206,402.67

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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.