Home / 384,897.01-531,174.09-215,131

Finding the Fourth Proportional to 384,897.01, 531,174.09 and 215,131

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Solution

The fourth proportional to 384,897.01, 531,174.09 and 215,131 is: 296,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,897.01 : 531,174.09 = 215,131 : x
  2. Step 2: Convert to fraction form
    384,897.01/531,174.09 = 215,131/x
  3. Step 3: Cross multiply
    384,897.01x = 531,174.09 × 215,131
  4. Step 4: Simplify right side
    384,897.01x = 114,272,013,155.79
  5. Step 5: Solve for x
    x = 114,272,013,155.79/384,897.01
  6. Step 6: Final answer
    x = 296,889.84

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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.