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Finding the Fourth Proportional to 354,959.55, 489,864.02 and 193,829.55

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Solution

The fourth proportional to 354,959.55, 489,864.02 and 193,829.55 is: 267,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,959.55 : 489,864.02 = 193,829.55 : x
  2. Step 2: Convert to fraction form
    354,959.55/489,864.02 = 193,829.55/x
  3. Step 3: Cross multiply
    354,959.55x = 489,864.02 × 193,829.55
  4. Step 4: Simplify right side
    354,959.55x = 94,950,121,588.64
  5. Step 5: Solve for x
    x = 94,950,121,588.64/354,959.55
  6. Step 6: Final answer
    x = 267,495.61

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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.