Home / 390,019.23-585,127.26-179,804.79

Finding the Fourth Proportional to 390,019.23, 585,127.26 and 179,804.79

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Solution

The fourth proportional to 390,019.23, 585,127.26 and 179,804.79 is: 269,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,019.23 : 585,127.26 = 179,804.79 : x
  2. Step 2: Convert to fraction form
    390,019.23/585,127.26 = 179,804.79/x
  3. Step 3: Cross multiply
    390,019.23x = 585,127.26 × 179,804.79
  4. Step 4: Simplify right side
    390,019.23x = 105,208,684,107.58
  5. Step 5: Solve for x
    x = 105,208,684,107.58/390,019.23
  6. Step 6: Final answer
    x = 269,752.56

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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.