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Finding the Fourth Proportional to 312,376.68, 468,505.98 and 152,291.88

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Solution

The fourth proportional to 312,376.68, 468,505.98 and 152,291.88 is: 228,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,376.68 : 468,505.98 = 152,291.88 : x
  2. Step 2: Convert to fraction form
    312,376.68/468,505.98 = 152,291.88/x
  3. Step 3: Cross multiply
    312,376.68x = 468,505.98 × 152,291.88
  4. Step 4: Simplify right side
    312,376.68x = 71,349,656,485.44
  5. Step 5: Solve for x
    x = 71,349,656,485.44/312,376.68
  6. Step 6: Final answer
    x = 228,409.04

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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.