Home / 345,372.04-517,090.31-260,866.36

Finding the Fourth Proportional to 345,372.04, 517,090.31 and 260,866.36

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Solution

The fourth proportional to 345,372.04, 517,090.31 and 260,866.36 is: 390,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,372.04 : 517,090.31 = 260,866.36 : x
  2. Step 2: Convert to fraction form
    345,372.04/517,090.31 = 260,866.36/x
  3. Step 3: Cross multiply
    345,372.04x = 517,090.31 × 260,866.36
  4. Step 4: Simplify right side
    345,372.04x = 134,891,466,960.97
  5. Step 5: Solve for x
    x = 134,891,466,960.97/345,372.04
  6. Step 6: Final answer
    x = 390,568.58

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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.