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Finding the Fourth Proportional to 381,966.80, 572,777.40 and 171,496.40

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Solution

The fourth proportional to 381,966.80, 572,777.40 and 171,496.40 is: 257,167.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,966.80 : 572,777.40 = 171,496.40 : x
  2. Step 2: Convert to fraction form
    381,966.80/572,777.40 = 171,496.40/x
  3. Step 3: Cross multiply
    381,966.80x = 572,777.40 × 171,496.40
  4. Step 4: Simplify right side
    381,966.80x = 98,229,262,101.36
  5. Step 5: Solve for x
    x = 98,229,262,101.36/381,966.80
  6. Step 6: Final answer
    x = 257,167.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.