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Finding the Fourth Proportional to 312,529.66, 468,472.70 and 122,913.15

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Solution

The fourth proportional to 312,529.66, 468,472.70 and 122,913.15 is: 184,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,529.66 : 468,472.70 = 122,913.15 : x
  2. Step 2: Convert to fraction form
    312,529.66/468,472.70 = 122,913.15/x
  3. Step 3: Cross multiply
    312,529.66x = 468,472.70 × 122,913.15
  4. Step 4: Simplify right side
    312,529.66x = 57,581,457,057.87
  5. Step 5: Solve for x
    x = 57,581,457,057.87/312,529.66
  6. Step 6: Final answer
    x = 184,243.18

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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.