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Finding the Fourth Proportional to 369,977.50, 554,966.25 and 120,659.50

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Solution

The fourth proportional to 369,977.50, 554,966.25 and 120,659.50 is: 180,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,977.50 : 554,966.25 = 120,659.50 : x
  2. Step 2: Convert to fraction form
    369,977.50/554,966.25 = 120,659.50/x
  3. Step 3: Cross multiply
    369,977.50x = 554,966.25 × 120,659.50
  4. Step 4: Simplify right side
    369,977.50x = 66,961,950,241.88
  5. Step 5: Solve for x
    x = 66,961,950,241.88/369,977.50
  6. Step 6: Final answer
    x = 180,989.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.