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Finding the Fourth Proportional to 268,655.74, 402,983.88 and 100,173.49

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Solution

The fourth proportional to 268,655.74, 402,983.88 and 100,173.49 is: 150,260.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,655.74 : 402,983.88 = 100,173.49 : x
  2. Step 2: Convert to fraction form
    268,655.74/402,983.88 = 100,173.49/x
  3. Step 3: Cross multiply
    268,655.74x = 402,983.88 × 100,173.49
  4. Step 4: Simplify right side
    268,655.74x = 40,368,301,673.34
  5. Step 5: Solve for x
    x = 40,368,301,673.34/268,655.74
  6. Step 6: Final answer
    x = 150,260.34

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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.