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Finding the Fourth Proportional to 345,460.78, 518,150.13 and 120,804.04

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Solution

The fourth proportional to 345,460.78, 518,150.13 and 120,804.04 is: 181,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,460.78 : 518,150.13 = 120,804.04 : x
  2. Step 2: Convert to fraction form
    345,460.78/518,150.13 = 120,804.04/x
  3. Step 3: Cross multiply
    345,460.78x = 518,150.13 × 120,804.04
  4. Step 4: Simplify right side
    345,460.78x = 62,594,629,030.53
  5. Step 5: Solve for x
    x = 62,594,629,030.53/345,460.78
  6. Step 6: Final answer
    x = 181,191.71

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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.