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Finding the Fourth Proportional to 255,363.84, 352,399.68 and 142,179.84

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Solution

The fourth proportional to 255,363.84, 352,399.68 and 142,179.84 is: 196,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,363.84 : 352,399.68 = 142,179.84 : x
  2. Step 2: Convert to fraction form
    255,363.84/352,399.68 = 142,179.84/x
  3. Step 3: Cross multiply
    255,363.84x = 352,399.68 × 142,179.84
  4. Step 4: Simplify right side
    255,363.84x = 50,104,130,118.45
  5. Step 5: Solve for x
    x = 50,104,130,118.45/255,363.84
  6. Step 6: Final answer
    x = 196,206.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.