Home / 347,690.28-521,579.16-122,997.90

Finding the Fourth Proportional to 347,690.28, 521,579.16 and 122,997.90

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Solution

The fourth proportional to 347,690.28, 521,579.16 and 122,997.90 is: 184,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,690.28 : 521,579.16 = 122,997.90 : x
  2. Step 2: Convert to fraction form
    347,690.28/521,579.16 = 122,997.90/x
  3. Step 3: Cross multiply
    347,690.28x = 521,579.16 × 122,997.90
  4. Step 4: Simplify right side
    347,690.28x = 64,153,141,363.76
  5. Step 5: Solve for x
    x = 64,153,141,363.76/347,690.28
  6. Step 6: Final answer
    x = 184,512.32

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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.