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Finding the Fourth Proportional to 312,483.70, 468,732.84 and 112,820.32

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Solution

The fourth proportional to 312,483.70, 468,732.84 and 112,820.32 is: 169,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,483.70 : 468,732.84 = 112,820.32 : x
  2. Step 2: Convert to fraction form
    312,483.70/468,732.84 = 112,820.32/x
  3. Step 3: Cross multiply
    312,483.70x = 468,732.84 × 112,820.32
  4. Step 4: Simplify right side
    312,483.70x = 52,882,589,003.31
  5. Step 5: Solve for x
    x = 52,882,589,003.31/312,483.70
  6. Step 6: Final answer
    x = 169,233.11

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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.