Home / 328,205.40-452,622.78-215,090.52

Finding the Fourth Proportional to 328,205.40, 452,622.78 and 215,090.52

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Solution

The fourth proportional to 328,205.40, 452,622.78 and 215,090.52 is: 296,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,205.40 : 452,622.78 = 215,090.52 : x
  2. Step 2: Convert to fraction form
    328,205.40/452,622.78 = 215,090.52/x
  3. Step 3: Cross multiply
    328,205.40x = 452,622.78 × 215,090.52
  4. Step 4: Simplify right side
    328,205.40x = 97,354,869,114.05
  5. Step 5: Solve for x
    x = 97,354,869,114.05/328,205.40
  6. Step 6: Final answer
    x = 296,627.87

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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.