Home / 309,629.04-427,292.96-173,693.20

Finding the Fourth Proportional to 309,629.04, 427,292.96 and 173,693.20

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Solution

The fourth proportional to 309,629.04, 427,292.96 and 173,693.20 is: 239,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,629.04 : 427,292.96 = 173,693.20 : x
  2. Step 2: Convert to fraction form
    309,629.04/427,292.96 = 173,693.20/x
  3. Step 3: Cross multiply
    309,629.04x = 427,292.96 × 173,693.20
  4. Step 4: Simplify right side
    309,629.04x = 74,217,881,559.87
  5. Step 5: Solve for x
    x = 74,217,881,559.87/309,629.04
  6. Step 6: Final answer
    x = 239,699.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.