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Finding the Fourth Proportional to 346,006.60, 518,760.81 and 212,611.25

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Solution

The fourth proportional to 346,006.60, 518,760.81 and 212,611.25 is: 318,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,006.60 : 518,760.81 = 212,611.25 : x
  2. Step 2: Convert to fraction form
    346,006.60/518,760.81 = 212,611.25/x
  3. Step 3: Cross multiply
    346,006.60x = 518,760.81 × 212,611.25
  4. Step 4: Simplify right side
    346,006.60x = 110,294,384,265.11
  5. Step 5: Solve for x
    x = 110,294,384,265.11/346,006.60
  6. Step 6: Final answer
    x = 318,763.82

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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.