Home / 379,167.36-523,254.53-215,815.89

Finding the Fourth Proportional to 379,167.36, 523,254.53 and 215,815.89

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Solution

The fourth proportional to 379,167.36, 523,254.53 and 215,815.89 is: 297,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,167.36 : 523,254.53 = 215,815.89 : x
  2. Step 2: Convert to fraction form
    379,167.36/523,254.53 = 215,815.89/x
  3. Step 3: Cross multiply
    379,167.36x = 523,254.53 × 215,815.89
  4. Step 4: Simplify right side
    379,167.36x = 112,926,639,472.21
  5. Step 5: Solve for x
    x = 112,926,639,472.21/379,167.36
  6. Step 6: Final answer
    x = 297,827.96

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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.