Home / 281,345.12-388,287.24-179,374.28

Finding the Fourth Proportional to 281,345.12, 388,287.24 and 179,374.28

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Solution

The fourth proportional to 281,345.12, 388,287.24 and 179,374.28 is: 247,556.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,345.12 : 388,287.24 = 179,374.28 : x
  2. Step 2: Convert to fraction form
    281,345.12/388,287.24 = 179,374.28/x
  3. Step 3: Cross multiply
    281,345.12x = 388,287.24 × 179,374.28
  4. Step 4: Simplify right side
    281,345.12x = 69,648,744,108.19
  5. Step 5: Solve for x
    x = 69,648,744,108.19/281,345.12
  6. Step 6: Final answer
    x = 247,556.25

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1.5x scale

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.