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Finding the Fourth Proportional to 207,489.81, 310,735.74 and 118,473.51

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Solution

The fourth proportional to 207,489.81, 310,735.74 and 118,473.51 is: 177,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,489.81 : 310,735.74 = 118,473.51 : x
  2. Step 2: Convert to fraction form
    207,489.81/310,735.74 = 118,473.51/x
  3. Step 3: Cross multiply
    207,489.81x = 310,735.74 × 118,473.51
  4. Step 4: Simplify right side
    207,489.81x = 36,813,953,800.25
  5. Step 5: Solve for x
    x = 36,813,953,800.25/207,489.81
  6. Step 6: Final answer
    x = 177,425.36

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1.5x scale

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.