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Finding the Fourth Proportional to 215,377.66, 323,114.67 and 65,629.67

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Solution

The fourth proportional to 215,377.66, 323,114.67 and 65,629.67 is: 98,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,377.66 : 323,114.67 = 65,629.67 : x
  2. Step 2: Convert to fraction form
    215,377.66/323,114.67 = 65,629.67/x
  3. Step 3: Cross multiply
    215,377.66x = 323,114.67 × 65,629.67
  4. Step 4: Simplify right side
    215,377.66x = 21,205,908,457.45
  5. Step 5: Solve for x
    x = 21,205,908,457.45/215,377.66
  6. Step 6: Final answer
    x = 98,459.18

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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.