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Finding the Fourth Proportional to 429,639.39, 592,885.78 and 238,664.88

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Solution

The fourth proportional to 429,639.39, 592,885.78 and 238,664.88 is: 329,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,639.39 : 592,885.78 = 238,664.88 : x
  2. Step 2: Convert to fraction form
    429,639.39/592,885.78 = 238,664.88/x
  3. Step 3: Cross multiply
    429,639.39x = 592,885.78 × 238,664.88
  4. Step 4: Simplify right side
    429,639.39x = 141,501,012,940.74
  5. Step 5: Solve for x
    x = 141,501,012,940.74/429,639.39
  6. Step 6: Final answer
    x = 329,348.32

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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.