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Finding the Fourth Proportional to 389,773, 584,659.50 and 94,285

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Solution

The fourth proportional to 389,773, 584,659.50 and 94,285 is: 141,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,773 : 584,659.50 = 94,285 : x
  2. Step 2: Convert to fraction form
    389,773/584,659.50 = 94,285/x
  3. Step 3: Cross multiply
    389,773x = 584,659.50 × 94,285
  4. Step 4: Simplify right side
    389,773x = 55,124,620,957.50
  5. Step 5: Solve for x
    x = 55,124,620,957.50/389,773
  6. Step 6: Final answer
    x = 141,427.50

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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.