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Finding the Fourth Proportional to 358,982.60, 537,817.80 and 218,577.20

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Solution

The fourth proportional to 358,982.60, 537,817.80 and 218,577.20 is: 327,466.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,982.60 : 537,817.80 = 218,577.20 : x
  2. Step 2: Convert to fraction form
    358,982.60/537,817.80 = 218,577.20/x
  3. Step 3: Cross multiply
    358,982.60x = 537,817.80 × 218,577.20
  4. Step 4: Simplify right side
    358,982.60x = 117,554,708,834.16
  5. Step 5: Solve for x
    x = 117,554,708,834.16/358,982.60
  6. Step 6: Final answer
    x = 327,466.31

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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.