Home / 347,628.20-521,636.70-147,914.60

Finding the Fourth Proportional to 347,628.20, 521,636.70 and 147,914.60

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Solution

The fourth proportional to 347,628.20, 521,636.70 and 147,914.60 is: 221,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,628.20 : 521,636.70 = 147,914.60 : x
  2. Step 2: Convert to fraction form
    347,628.20/521,636.70 = 147,914.60/x
  3. Step 3: Cross multiply
    347,628.20x = 521,636.70 × 147,914.60
  4. Step 4: Simplify right side
    347,628.20x = 77,157,683,825.82
  5. Step 5: Solve for x
    x = 77,157,683,825.82/347,628.20
  6. Step 6: Final answer
    x = 221,954.62

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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.