Home / 381,617.28-572,438.06-191,974

Finding the Fourth Proportional to 381,617.28, 572,438.06 and 191,974

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Solution

The fourth proportional to 381,617.28, 572,438.06 and 191,974 is: 287,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,617.28 : 572,438.06 = 191,974 : x
  2. Step 2: Convert to fraction form
    381,617.28/572,438.06 = 191,974/x
  3. Step 3: Cross multiply
    381,617.28x = 572,438.06 × 191,974
  4. Step 4: Simplify right side
    381,617.28x = 109,893,224,130.44
  5. Step 5: Solve for x
    x = 109,893,224,130.44/381,617.28
  6. Step 6: Final answer
    x = 287,967.11

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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.