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Finding the Fourth Proportional to 230,692.78, 346,037.10 and 72,921.34

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Solution

The fourth proportional to 230,692.78, 346,037.10 and 72,921.34 is: 109,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,692.78 : 346,037.10 = 72,921.34 : x
  2. Step 2: Convert to fraction form
    230,692.78/346,037.10 = 72,921.34/x
  3. Step 3: Cross multiply
    230,692.78x = 346,037.10 × 72,921.34
  4. Step 4: Simplify right side
    230,692.78x = 25,233,489,021.71
  5. Step 5: Solve for x
    x = 25,233,489,021.71/230,692.78
  6. Step 6: Final answer
    x = 109,381.36

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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.