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Finding the Fourth Proportional to 354,512.64, 489,228.96 and 193,371.16

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Solution

The fourth proportional to 354,512.64, 489,228.96 and 193,371.16 is: 266,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,512.64 : 489,228.96 = 193,371.16 : x
  2. Step 2: Convert to fraction form
    354,512.64/489,228.96 = 193,371.16/x
  3. Step 3: Cross multiply
    354,512.64x = 489,228.96 × 193,371.16
  4. Step 4: Simplify right side
    354,512.64x = 94,602,771,500.79
  5. Step 5: Solve for x
    x = 94,602,771,500.79/354,512.64
  6. Step 6: Final answer
    x = 266,853.03

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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.