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Finding the Fourth Proportional to 312,230.55, 468,260.74 and 87,577.05

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Solution

The fourth proportional to 312,230.55, 468,260.74 and 87,577.05 is: 131,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,230.55 : 468,260.74 = 87,577.05 : x
  2. Step 2: Convert to fraction form
    312,230.55/468,260.74 = 87,577.05/x
  3. Step 3: Cross multiply
    312,230.55x = 468,260.74 × 87,577.05
  4. Step 4: Simplify right side
    312,230.55x = 41,008,894,240.02
  5. Step 5: Solve for x
    x = 41,008,894,240.02/312,230.55
  6. Step 6: Final answer
    x = 131,341.71

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1.5x scale

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.