Home / 353,059.20-529,394.40-142,459.20

Finding the Fourth Proportional to 353,059.20, 529,394.40 and 142,459.20

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Solution

The fourth proportional to 353,059.20, 529,394.40 and 142,459.20 is: 213,610.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,059.20 : 529,394.40 = 142,459.20 : x
  2. Step 2: Convert to fraction form
    353,059.20/529,394.40 = 142,459.20/x
  3. Step 3: Cross multiply
    353,059.20x = 529,394.40 × 142,459.20
  4. Step 4: Simplify right side
    353,059.20x = 75,417,102,708.48
  5. Step 5: Solve for x
    x = 75,417,102,708.48/353,059.20
  6. Step 6: Final answer
    x = 213,610.36

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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.