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Finding the Fourth Proportional to 220,533.42, 330,909.60 and 87,410.76

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Solution

The fourth proportional to 220,533.42, 330,909.60 and 87,410.76 is: 131,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,533.42 : 330,909.60 = 87,410.76 : x
  2. Step 2: Convert to fraction form
    220,533.42/330,909.60 = 87,410.76/x
  3. Step 3: Cross multiply
    220,533.42x = 330,909.60 × 87,410.76
  4. Step 4: Simplify right side
    220,533.42x = 28,925,059,627.30
  5. Step 5: Solve for x
    x = 28,925,059,627.30/220,533.42
  6. Step 6: Final answer
    x = 131,159.53

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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.