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Finding the Fourth Proportional to 392,972.92, 542,302.60 and 214,124.92

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Solution

The fourth proportional to 392,972.92, 542,302.60 and 214,124.92 is: 295,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,972.92 : 542,302.60 = 214,124.92 : x
  2. Step 2: Convert to fraction form
    392,972.92/542,302.60 = 214,124.92/x
  3. Step 3: Cross multiply
    392,972.92x = 542,302.60 × 214,124.92
  4. Step 4: Simplify right side
    392,972.92x = 116,120,500,840.79
  5. Step 5: Solve for x
    x = 116,120,500,840.79/392,972.92
  6. Step 6: Final answer
    x = 295,492.37

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1.5x scale

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.