Home / 230,998.08-318,776.40-130,395.36

Finding the Fourth Proportional to 230,998.08, 318,776.40 and 130,395.36

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Solution

The fourth proportional to 230,998.08, 318,776.40 and 130,395.36 is: 179,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,998.08 : 318,776.40 = 130,395.36 : x
  2. Step 2: Convert to fraction form
    230,998.08/318,776.40 = 130,395.36/x
  3. Step 3: Cross multiply
    230,998.08x = 318,776.40 × 130,395.36
  4. Step 4: Simplify right side
    230,998.08x = 41,566,963,437.50
  5. Step 5: Solve for x
    x = 41,566,963,437.50/230,998.08
  6. Step 6: Final answer
    x = 179,945.06

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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.