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Finding the Fourth Proportional to 230,811.60, 346,217.40 and 219,925.20

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Solution

The fourth proportional to 230,811.60, 346,217.40 and 219,925.20 is: 329,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,811.60 : 346,217.40 = 219,925.20 : x
  2. Step 2: Convert to fraction form
    230,811.60/346,217.40 = 219,925.20/x
  3. Step 3: Cross multiply
    230,811.60x = 346,217.40 × 219,925.20
  4. Step 4: Simplify right side
    230,811.60x = 76,141,930,938.48
  5. Step 5: Solve for x
    x = 76,141,930,938.48/230,811.60
  6. Step 6: Final answer
    x = 329,887.80

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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.