Home / 345,730.89-518,591.19-210,834.60

Finding the Fourth Proportional to 345,730.89, 518,591.19 and 210,834.60

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Solution

The fourth proportional to 345,730.89, 518,591.19 and 210,834.60 is: 316,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,730.89 : 518,591.19 = 210,834.60 : x
  2. Step 2: Convert to fraction form
    345,730.89/518,591.19 = 210,834.60/x
  3. Step 3: Cross multiply
    345,730.89x = 518,591.19 × 210,834.60
  4. Step 4: Simplify right side
    345,730.89x = 109,336,966,107.17
  5. Step 5: Solve for x
    x = 109,336,966,107.17/345,730.89
  6. Step 6: Final answer
    x = 316,248.76

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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.