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Finding the Fourth Proportional to 442,885.50, 611,214.84 and 251,960.40

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Solution

The fourth proportional to 442,885.50, 611,214.84 and 251,960.40 is: 347,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,885.50 : 611,214.84 = 251,960.40 : x
  2. Step 2: Convert to fraction form
    442,885.50/611,214.84 = 251,960.40/x
  3. Step 3: Cross multiply
    442,885.50x = 611,214.84 × 251,960.40
  4. Step 4: Simplify right side
    442,885.50x = 154,001,935,572.34
  5. Step 5: Solve for x
    x = 154,001,935,572.34/442,885.50
  6. Step 6: Final answer
    x = 347,724.04

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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.