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Finding the Fourth Proportional to 207,223.77, 310,835.66 and 137,086.68

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Solution

The fourth proportional to 207,223.77, 310,835.66 and 137,086.68 is: 205,630.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,223.77 : 310,835.66 = 137,086.68 : x
  2. Step 2: Convert to fraction form
    207,223.77/310,835.66 = 137,086.68/x
  3. Step 3: Cross multiply
    207,223.77x = 310,835.66 × 137,086.68
  4. Step 4: Simplify right side
    207,223.77x = 42,611,427,969.58
  5. Step 5: Solve for x
    x = 42,611,427,969.58/207,223.77
  6. Step 6: Final answer
    x = 205,630.02

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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.