Home / 381,919.10-572,878.65-192,306.20

Finding the Fourth Proportional to 381,919.10, 572,878.65 and 192,306.20

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Solution

The fourth proportional to 381,919.10, 572,878.65 and 192,306.20 is: 288,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,919.10 : 572,878.65 = 192,306.20 : x
  2. Step 2: Convert to fraction form
    381,919.10/572,878.65 = 192,306.20/x
  3. Step 3: Cross multiply
    381,919.10x = 572,878.65 × 192,306.20
  4. Step 4: Simplify right side
    381,919.10x = 110,168,116,242.63
  5. Step 5: Solve for x
    x = 110,168,116,242.63/381,919.10
  6. Step 6: Final answer
    x = 288,459.30

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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.