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Finding the Fourth Proportional to 238,512.72, 357,780 and 168,703.68

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Solution

The fourth proportional to 238,512.72, 357,780 and 168,703.68 is: 253,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,512.72 : 357,780 = 168,703.68 : x
  2. Step 2: Convert to fraction form
    238,512.72/357,780 = 168,703.68/x
  3. Step 3: Cross multiply
    238,512.72x = 357,780 × 168,703.68
  4. Step 4: Simplify right side
    238,512.72x = 60,358,802,630.40
  5. Step 5: Solve for x
    x = 60,358,802,630.40/238,512.72
  6. Step 6: Final answer
    x = 253,063.24

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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.