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Finding the Fourth Proportional to 325,117.84, 487,693.08 and 103,519.12

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Solution

The fourth proportional to 325,117.84, 487,693.08 and 103,519.12 is: 155,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,117.84 : 487,693.08 = 103,519.12 : x
  2. Step 2: Convert to fraction form
    325,117.84/487,693.08 = 103,519.12/x
  3. Step 3: Cross multiply
    325,117.84x = 487,693.08 × 103,519.12
  4. Step 4: Simplify right side
    325,117.84x = 50,485,558,471.69
  5. Step 5: Solve for x
    x = 50,485,558,471.69/325,117.84
  6. Step 6: Final answer
    x = 155,283.88

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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.