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Finding the Fourth Proportional to 561,680.40, 842,520.60 and 162,334.20

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Solution

The fourth proportional to 561,680.40, 842,520.60 and 162,334.20 is: 243,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,680.40 : 842,520.60 = 162,334.20 : x
  2. Step 2: Convert to fraction form
    561,680.40/842,520.60 = 162,334.20/x
  3. Step 3: Cross multiply
    561,680.40x = 842,520.60 × 162,334.20
  4. Step 4: Simplify right side
    561,680.40x = 136,769,907,584.52
  5. Step 5: Solve for x
    x = 136,769,907,584.52/561,680.40
  6. Step 6: Final answer
    x = 243,501.30

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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.