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Finding the Fourth Proportional to 328,542.40, 453,388.40 and 185,302.12

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Solution

The fourth proportional to 328,542.40, 453,388.40 and 185,302.12 is: 255,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,542.40 : 453,388.40 = 185,302.12 : x
  2. Step 2: Convert to fraction form
    328,542.40/453,388.40 = 185,302.12/x
  3. Step 3: Cross multiply
    328,542.40x = 453,388.40 × 185,302.12
  4. Step 4: Simplify right side
    328,542.40x = 84,013,831,703.41
  5. Step 5: Solve for x
    x = 84,013,831,703.41/328,542.40
  6. Step 6: Final answer
    x = 255,716.86

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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.