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Finding the Fourth Proportional to 230,713.00, 346,123.31 and 78,911.25

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Solution

The fourth proportional to 230,713.00, 346,123.31 and 78,911.25 is: 118,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,713.00 : 346,123.31 = 78,911.25 : x
  2. Step 2: Convert to fraction form
    230,713.00/346,123.31 = 78,911.25/x
  3. Step 3: Cross multiply
    230,713.00x = 346,123.31 × 78,911.25
  4. Step 4: Simplify right side
    230,713.00x = 27,313,023,243.52
  5. Step 5: Solve for x
    x = 27,313,023,243.52/230,713.00
  6. Step 6: Final answer
    x = 118,385.28

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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.