Home / 222,982.47-307,640.43-127,421.51

Finding the Fourth Proportional to 222,982.47, 307,640.43 and 127,421.51

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Solution

The fourth proportional to 222,982.47, 307,640.43 and 127,421.51 is: 175,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,982.47 : 307,640.43 = 127,421.51 : x
  2. Step 2: Convert to fraction form
    222,982.47/307,640.43 = 127,421.51/x
  3. Step 3: Cross multiply
    222,982.47x = 307,640.43 × 127,421.51
  4. Step 4: Simplify right side
    222,982.47x = 39,200,006,589.45
  5. Step 5: Solve for x
    x = 39,200,006,589.45/222,982.47
  6. Step 6: Final answer
    x = 175,798.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.