Home / 252,823.20-379,040.40-142,015.20

Finding the Fourth Proportional to 252,823.20, 379,040.40 and 142,015.20

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Solution

The fourth proportional to 252,823.20, 379,040.40 and 142,015.20 is: 212,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,823.20 : 379,040.40 = 142,015.20 : x
  2. Step 2: Convert to fraction form
    252,823.20/379,040.40 = 142,015.20/x
  3. Step 3: Cross multiply
    252,823.20x = 379,040.40 × 142,015.20
  4. Step 4: Simplify right side
    252,823.20x = 53,829,498,214.08
  5. Step 5: Solve for x
    x = 53,829,498,214.08/252,823.20
  6. Step 6: Final answer
    x = 212,913.60

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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.