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Finding the Fourth Proportional to 302,502.72, 452,961.36 and 213,273.12

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Solution

The fourth proportional to 302,502.72, 452,961.36 and 213,273.12 is: 319,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,502.72 : 452,961.36 = 213,273.12 : x
  2. Step 2: Convert to fraction form
    302,502.72/452,961.36 = 213,273.12/x
  3. Step 3: Cross multiply
    302,502.72x = 452,961.36 × 213,273.12
  4. Step 4: Simplify right side
    302,502.72x = 96,604,482,486.64
  5. Step 5: Solve for x
    x = 96,604,482,486.64/302,502.72
  6. Step 6: Final answer
    x = 319,350.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.