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Finding the Fourth Proportional to 254,288.40, 381,605.40 and 141,968.40

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Solution

The fourth proportional to 254,288.40, 381,605.40 and 141,968.40 is: 213,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,288.40 : 381,605.40 = 141,968.40 : x
  2. Step 2: Convert to fraction form
    254,288.40/381,605.40 = 141,968.40/x
  3. Step 3: Cross multiply
    254,288.40x = 381,605.40 × 141,968.40
  4. Step 4: Simplify right side
    254,288.40x = 54,175,908,069.36
  5. Step 5: Solve for x
    x = 54,175,908,069.36/254,288.40
  6. Step 6: Final answer
    x = 213,049.07

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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.