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Finding the Fourth Proportional to 379,659.16, 569,294.61 and 126,848.44

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Solution

The fourth proportional to 379,659.16, 569,294.61 and 126,848.44 is: 190,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,659.16 : 569,294.61 = 126,848.44 : x
  2. Step 2: Convert to fraction form
    379,659.16/569,294.61 = 126,848.44/x
  3. Step 3: Cross multiply
    379,659.16x = 569,294.61 × 126,848.44
  4. Step 4: Simplify right side
    379,659.16x = 72,214,133,178.91
  5. Step 5: Solve for x
    x = 72,214,133,178.91/379,659.16
  6. Step 6: Final answer
    x = 190,207.80

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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.