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Finding the Fourth Proportional to 361,881.79, 542,827.30 and 95,640

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Solution

The fourth proportional to 361,881.79, 542,827.30 and 95,640 is: 143,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,881.79 : 542,827.30 = 95,640 : x
  2. Step 2: Convert to fraction form
    361,881.79/542,827.30 = 95,640/x
  3. Step 3: Cross multiply
    361,881.79x = 542,827.30 × 95,640
  4. Step 4: Simplify right side
    361,881.79x = 51,916,002,777.73
  5. Step 5: Solve for x
    x = 51,916,002,777.73/361,881.79
  6. Step 6: Final answer
    x = 143,461.22

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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.