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Finding the Fourth Proportional to 418,710.70, 627,971.68 and 119,184.64

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Solution

The fourth proportional to 418,710.70, 627,971.68 and 119,184.64 is: 178,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,710.70 : 627,971.68 = 119,184.64 : x
  2. Step 2: Convert to fraction form
    418,710.70/627,971.68 = 119,184.64/x
  3. Step 3: Cross multiply
    418,710.70x = 627,971.68 × 119,184.64
  4. Step 4: Simplify right side
    418,710.70x = 74,844,578,611.00
  5. Step 5: Solve for x
    x = 74,844,578,611.00/418,710.70
  6. Step 6: Final answer
    x = 178,750.10

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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.