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Finding the Fourth Proportional to 312,079.32, 468,131.94 and 101,719.08

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Solution

The fourth proportional to 312,079.32, 468,131.94 and 101,719.08 is: 152,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,079.32 : 468,131.94 = 101,719.08 : x
  2. Step 2: Convert to fraction form
    312,079.32/468,131.94 = 101,719.08/x
  3. Step 3: Cross multiply
    312,079.32x = 468,131.94 × 101,719.08
  4. Step 4: Simplify right side
    312,079.32x = 47,617,950,255.42
  5. Step 5: Solve for x
    x = 47,617,950,255.42/312,079.32
  6. Step 6: Final answer
    x = 152,582.84

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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.