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Finding the Fourth Proportional to 207,210.94, 310,910.70 and 100,537.32

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Solution

The fourth proportional to 207,210.94, 310,910.70 and 100,537.32 is: 150,851.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,210.94 : 310,910.70 = 100,537.32 : x
  2. Step 2: Convert to fraction form
    207,210.94/310,910.70 = 100,537.32/x
  3. Step 3: Cross multiply
    207,210.94x = 310,910.70 × 100,537.32
  4. Step 4: Simplify right side
    207,210.94x = 31,258,128,537.32
  5. Step 5: Solve for x
    x = 31,258,128,537.32/207,210.94
  6. Step 6: Final answer
    x = 150,851.73

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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.