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Finding the Fourth Proportional to 220,332.96, 330,501.60 and 87,245.64

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Solution

The fourth proportional to 220,332.96, 330,501.60 and 87,245.64 is: 130,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,332.96 : 330,501.60 = 87,245.64 : x
  2. Step 2: Convert to fraction form
    220,332.96/330,501.60 = 87,245.64/x
  3. Step 3: Cross multiply
    220,332.96x = 330,501.60 × 87,245.64
  4. Step 4: Simplify right side
    220,332.96x = 28,834,823,613.02
  5. Step 5: Solve for x
    x = 28,834,823,613.02/220,332.96
  6. Step 6: Final answer
    x = 130,869.32

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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.