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Finding the Fourth Proportional to 381,962.80, 572,771.40 and 171,492.40

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Solution

The fourth proportional to 381,962.80, 572,771.40 and 171,492.40 is: 257,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,962.80 : 572,771.40 = 171,492.40 : x
  2. Step 2: Convert to fraction form
    381,962.80/572,771.40 = 171,492.40/x
  3. Step 3: Cross multiply
    381,962.80x = 572,771.40 × 171,492.40
  4. Step 4: Simplify right side
    381,962.80x = 98,225,942,037.36
  5. Step 5: Solve for x
    x = 98,225,942,037.36/381,962.80
  6. Step 6: Final answer
    x = 257,161.02

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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.