Home / 231,633.12-348,030.48-147,429.60

Finding the Fourth Proportional to 231,633.12, 348,030.48 and 147,429.60

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Solution

The fourth proportional to 231,633.12, 348,030.48 and 147,429.60 is: 221,514.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,633.12 : 348,030.48 = 147,429.60 : x
  2. Step 2: Convert to fraction form
    231,633.12/348,030.48 = 147,429.60/x
  3. Step 3: Cross multiply
    231,633.12x = 348,030.48 × 147,429.60
  4. Step 4: Simplify right side
    231,633.12x = 51,309,994,454.21
  5. Step 5: Solve for x
    x = 51,309,994,454.21/231,633.12
  6. Step 6: Final answer
    x = 221,514.07

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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.