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Finding the Fourth Proportional to 354,849.65, 489,673.82 and 193,673.42

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Solution

The fourth proportional to 354,849.65, 489,673.82 and 193,673.42 is: 267,259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,849.65 : 489,673.82 = 193,673.42 : x
  2. Step 2: Convert to fraction form
    354,849.65/489,673.82 = 193,673.42/x
  3. Step 3: Cross multiply
    354,849.65x = 489,673.82 × 193,673.42
  4. Step 4: Simplify right side
    354,849.65x = 94,836,803,403.86
  5. Step 5: Solve for x
    x = 94,836,803,403.86/354,849.65
  6. Step 6: Final answer
    x = 267,259.11

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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.