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Finding the Fourth Proportional to 230,768.70, 346,153.05 and 130,890.30

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Solution

The fourth proportional to 230,768.70, 346,153.05 and 130,890.30 is: 196,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,768.70 : 346,153.05 = 130,890.30 : x
  2. Step 2: Convert to fraction form
    230,768.70/346,153.05 = 130,890.30/x
  3. Step 3: Cross multiply
    230,768.70x = 346,153.05 × 130,890.30
  4. Step 4: Simplify right side
    230,768.70x = 45,308,076,560.42
  5. Step 5: Solve for x
    x = 45,308,076,560.42/230,768.70
  6. Step 6: Final answer
    x = 196,335.45

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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.