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Finding the Fourth Proportional to 354,706.69, 489,505.58 and 193,572.12

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Solution

The fourth proportional to 354,706.69, 489,505.58 and 193,572.12 is: 267,135.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,706.69 : 489,505.58 = 193,572.12 : x
  2. Step 2: Convert to fraction form
    354,706.69/489,505.58 = 193,572.12/x
  3. Step 3: Cross multiply
    354,706.69x = 489,505.58 × 193,572.12
  4. Step 4: Simplify right side
    354,706.69x = 94,754,632,630.46
  5. Step 5: Solve for x
    x = 94,754,632,630.46/354,706.69
  6. Step 6: Final answer
    x = 267,135.17

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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.