Home / 274,320.10-411,480.15-87,331.60

Finding the Fourth Proportional to 274,320.10, 411,480.15 and 87,331.60

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Solution

The fourth proportional to 274,320.10, 411,480.15 and 87,331.60 is: 130,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,320.10 : 411,480.15 = 87,331.60 : x
  2. Step 2: Convert to fraction form
    274,320.10/411,480.15 = 87,331.60/x
  3. Step 3: Cross multiply
    274,320.10x = 411,480.15 × 87,331.60
  4. Step 4: Simplify right side
    274,320.10x = 35,935,219,867.74
  5. Step 5: Solve for x
    x = 35,935,219,867.74/274,320.10
  6. Step 6: Final answer
    x = 130,997.40

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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.