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Finding the Fourth Proportional to 518,604.30, 777,905.10 and 144,627.30

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Solution

The fourth proportional to 518,604.30, 777,905.10 and 144,627.30 is: 216,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,604.30 : 777,905.10 = 144,627.30 : x
  2. Step 2: Convert to fraction form
    518,604.30/777,905.10 = 144,627.30/x
  3. Step 3: Cross multiply
    518,604.30x = 777,905.10 × 144,627.30
  4. Step 4: Simplify right side
    518,604.30x = 112,506,314,269.23
  5. Step 5: Solve for x
    x = 112,506,314,269.23/518,604.30
  6. Step 6: Final answer
    x = 216,940.57

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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.