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Finding the Fourth Proportional to 207,702, 286,628.76 and 118,295.28

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Solution

The fourth proportional to 207,702, 286,628.76 and 118,295.28 is: 163,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,702 : 286,628.76 = 118,295.28 : x
  2. Step 2: Convert to fraction form
    207,702/286,628.76 = 118,295.28/x
  3. Step 3: Cross multiply
    207,702x = 286,628.76 × 118,295.28
  4. Step 4: Simplify right side
    207,702x = 33,906,829,420.25
  5. Step 5: Solve for x
    x = 33,906,829,420.25/207,702
  6. Step 6: Final answer
    x = 163,247.49

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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.