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Finding the Fourth Proportional to 354,133.80, 488,698.08 and 192,989.96

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Solution

The fourth proportional to 354,133.80, 488,698.08 and 192,989.96 is: 266,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,133.80 : 488,698.08 = 192,989.96 : x
  2. Step 2: Convert to fraction form
    354,133.80/488,698.08 = 192,989.96/x
  3. Step 3: Cross multiply
    354,133.80x = 488,698.08 × 192,989.96
  4. Step 4: Simplify right side
    354,133.80x = 94,313,822,911.28
  5. Step 5: Solve for x
    x = 94,313,822,911.28/354,133.80
  6. Step 6: Final answer
    x = 266,322.57

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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.