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Finding the Fourth Proportional to 550,992.40, 826,342.80 and 171,912.40

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Solution

The fourth proportional to 550,992.40, 826,342.80 and 171,912.40 is: 257,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,992.40 : 826,342.80 = 171,912.40 : x
  2. Step 2: Convert to fraction form
    550,992.40/826,342.80 = 171,912.40/x
  3. Step 3: Cross multiply
    550,992.40x = 826,342.80 × 171,912.40
  4. Step 4: Simplify right side
    550,992.40x = 142,058,573,970.72
  5. Step 5: Solve for x
    x = 142,058,573,970.72/550,992.40
  6. Step 6: Final answer
    x = 257,823.11

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1.5x scale

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.