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Finding the Fourth Proportional to 323,897.74, 485,916.23 and 99,273.67

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Solution

The fourth proportional to 323,897.74, 485,916.23 and 99,273.67 is: 148,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,897.74 : 485,916.23 = 99,273.67 : x
  2. Step 2: Convert to fraction form
    323,897.74/485,916.23 = 99,273.67/x
  3. Step 3: Cross multiply
    323,897.74x = 485,916.23 × 99,273.67
  4. Step 4: Simplify right side
    323,897.74x = 48,238,687,464.66
  5. Step 5: Solve for x
    x = 48,238,687,464.66/323,897.74
  6. Step 6: Final answer
    x = 148,931.84

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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.