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Finding the Fourth Proportional to 354,463.34, 489,154.12 and 193,318.04

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Solution

The fourth proportional to 354,463.34, 489,154.12 and 193,318.04 is: 266,776.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,463.34 : 489,154.12 = 193,318.04 : x
  2. Step 2: Convert to fraction form
    354,463.34/489,154.12 = 193,318.04/x
  3. Step 3: Cross multiply
    354,463.34x = 489,154.12 × 193,318.04
  4. Step 4: Simplify right side
    354,463.34x = 94,562,316,475.92
  5. Step 5: Solve for x
    x = 94,562,316,475.92/354,463.34
  6. Step 6: Final answer
    x = 266,776.02

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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.