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Finding the Fourth Proportional to 207,297.73, 310,973.95 and 72,364.23

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Solution

The fourth proportional to 207,297.73, 310,973.95 and 72,364.23 is: 108,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,297.73 : 310,973.95 = 72,364.23 : x
  2. Step 2: Convert to fraction form
    207,297.73/310,973.95 = 72,364.23/x
  3. Step 3: Cross multiply
    207,297.73x = 310,973.95 × 72,364.23
  4. Step 4: Simplify right side
    207,297.73x = 22,503,390,441.81
  5. Step 5: Solve for x
    x = 22,503,390,441.81/207,297.73
  6. Step 6: Final answer
    x = 108,555.89

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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.