Home / 259,575.20-389,492.40-147,341.60

Finding the Fourth Proportional to 259,575.20, 389,492.40 and 147,341.60

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Solution

The fourth proportional to 259,575.20, 389,492.40 and 147,341.60 is: 221,085.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,575.20 : 389,492.40 = 147,341.60 : x
  2. Step 2: Convert to fraction form
    259,575.20/389,492.40 = 147,341.60/x
  3. Step 3: Cross multiply
    259,575.20x = 389,492.40 × 147,341.60
  4. Step 4: Simplify right side
    259,575.20x = 57,388,433,403.84
  5. Step 5: Solve for x
    x = 57,388,433,403.84/259,575.20
  6. Step 6: Final answer
    x = 221,085.96

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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.