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Finding the Fourth Proportional to 238,878.96, 358,305.48 and 72,654

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Solution

The fourth proportional to 238,878.96, 358,305.48 and 72,654 is: 108,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,878.96 : 358,305.48 = 72,654 : x
  2. Step 2: Convert to fraction form
    238,878.96/358,305.48 = 72,654/x
  3. Step 3: Cross multiply
    238,878.96x = 358,305.48 × 72,654
  4. Step 4: Simplify right side
    238,878.96x = 26,032,326,343.92
  5. Step 5: Solve for x
    x = 26,032,326,343.92/238,878.96
  6. Step 6: Final answer
    x = 108,977.06

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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.