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Finding the Fourth Proportional to 437,634, 603,935.28 and 236,430

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Solution

The fourth proportional to 437,634, 603,935.28 and 236,430 is: 326,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,634 : 603,935.28 = 236,430 : x
  2. Step 2: Convert to fraction form
    437,634/603,935.28 = 236,430/x
  3. Step 3: Cross multiply
    437,634x = 603,935.28 × 236,430
  4. Step 4: Simplify right side
    437,634x = 142,788,418,250.40
  5. Step 5: Solve for x
    x = 142,788,418,250.40/437,634
  6. Step 6: Final answer
    x = 326,273.59

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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.