Home / 220,397.57-304,127.39-123,605.36

Finding the Fourth Proportional to 220,397.57, 304,127.39 and 123,605.36

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Solution

The fourth proportional to 220,397.57, 304,127.39 and 123,605.36 is: 170,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,397.57 : 304,127.39 = 123,605.36 : x
  2. Step 2: Convert to fraction form
    220,397.57/304,127.39 = 123,605.36/x
  3. Step 3: Cross multiply
    220,397.57x = 304,127.39 × 123,605.36
  4. Step 4: Simplify right side
    220,397.57x = 37,591,774,315.19
  5. Step 5: Solve for x
    x = 37,591,774,315.19/220,397.57
  6. Step 6: Final answer
    x = 170,563.47

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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.