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Finding the Fourth Proportional to 354,089.70, 488,637.54 and 192,945.78

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Solution

The fourth proportional to 354,089.70, 488,637.54 and 192,945.78 is: 266,261.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,089.70 : 488,637.54 = 192,945.78 : x
  2. Step 2: Convert to fraction form
    354,089.70/488,637.54 = 192,945.78/x
  3. Step 3: Cross multiply
    354,089.70x = 488,637.54 × 192,945.78
  4. Step 4: Simplify right side
    354,089.70x = 94,280,551,292.58
  5. Step 5: Solve for x
    x = 94,280,551,292.58/354,089.70
  6. Step 6: Final answer
    x = 266,261.77

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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.