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Finding the Fourth Proportional to 313,484.66, 432,741.22 and 211,648.02

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Solution

The fourth proportional to 313,484.66, 432,741.22 and 211,648.02 is: 292,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,484.66 : 432,741.22 = 211,648.02 : x
  2. Step 2: Convert to fraction form
    313,484.66/432,741.22 = 211,648.02/x
  3. Step 3: Cross multiply
    313,484.66x = 432,741.22 × 211,648.02
  4. Step 4: Simplify right side
    313,484.66x = 91,588,822,385.38
  5. Step 5: Solve for x
    x = 91,588,822,385.38/313,484.66
  6. Step 6: Final answer
    x = 292,163.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.