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Finding the Fourth Proportional to 500,625.40, 750,942.82 and 121,549.50

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Solution

The fourth proportional to 500,625.40, 750,942.82 and 121,549.50 is: 182,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,625.40 : 750,942.82 = 121,549.50 : x
  2. Step 2: Convert to fraction form
    500,625.40/750,942.82 = 121,549.50/x
  3. Step 3: Cross multiply
    500,625.40x = 750,942.82 × 121,549.50
  4. Step 4: Simplify right side
    500,625.40x = 91,276,724,299.59
  5. Step 5: Solve for x
    x = 91,276,724,299.59/500,625.40
  6. Step 6: Final answer
    x = 182,325.40

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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.