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Finding the Fourth Proportional to 305,947.29, 459,150.72 and 156,312.75

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Solution

The fourth proportional to 305,947.29, 459,150.72 and 156,312.75 is: 234,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,947.29 : 459,150.72 = 156,312.75 : x
  2. Step 2: Convert to fraction form
    305,947.29/459,150.72 = 156,312.75/x
  3. Step 3: Cross multiply
    305,947.29x = 459,150.72 × 156,312.75
  4. Step 4: Simplify right side
    305,947.29x = 71,771,111,707.68
  5. Step 5: Solve for x
    x = 71,771,111,707.68/305,947.29
  6. Step 6: Final answer
    x = 234,586.53

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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.