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Finding the Fourth Proportional to 310,322.96, 465,483.74 and 82,618.64

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Solution

The fourth proportional to 310,322.96, 465,483.74 and 82,618.64 is: 123,927.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,322.96 : 465,483.74 = 82,618.64 : x
  2. Step 2: Convert to fraction form
    310,322.96/465,483.74 = 82,618.64/x
  3. Step 3: Cross multiply
    310,322.96x = 465,483.74 × 82,618.64
  4. Step 4: Simplify right side
    310,322.96x = 38,457,633,540.91
  5. Step 5: Solve for x
    x = 38,457,633,540.91/310,322.96
  6. Step 6: Final answer
    x = 123,927.77

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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.