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Finding the Fourth Proportional to 328,650.40, 453,814.10 and 208,004.56

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Solution

The fourth proportional to 328,650.40, 453,814.10 and 208,004.56 is: 287,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,650.40 : 453,814.10 = 208,004.56 : x
  2. Step 2: Convert to fraction form
    328,650.40/453,814.10 = 208,004.56/x
  3. Step 3: Cross multiply
    328,650.40x = 453,814.10 × 208,004.56
  4. Step 4: Simplify right side
    328,650.40x = 94,395,402,192.30
  5. Step 5: Solve for x
    x = 94,395,402,192.30/328,650.40
  6. Step 6: Final answer
    x = 287,221.32

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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.