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Finding the Fourth Proportional to 255,328.70, 382,958.55 and 105,548.19

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Solution

The fourth proportional to 255,328.70, 382,958.55 and 105,548.19 is: 158,308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,328.70 : 382,958.55 = 105,548.19 : x
  2. Step 2: Convert to fraction form
    255,328.70/382,958.55 = 105,548.19/x
  3. Step 3: Cross multiply
    255,328.70x = 382,958.55 × 105,548.19
  4. Step 4: Simplify right side
    255,328.70x = 40,420,581,797.52
  5. Step 5: Solve for x
    x = 40,420,581,797.52/255,328.70
  6. Step 6: Final answer
    x = 158,308.03

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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.