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Finding the Fourth Proportional to 220,707, 304,554.60 and 123,888.69

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Solution

The fourth proportional to 220,707, 304,554.60 and 123,888.69 is: 170,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,707 : 304,554.60 = 123,888.69 : x
  2. Step 2: Convert to fraction form
    220,707/304,554.60 = 123,888.69/x
  3. Step 3: Cross multiply
    220,707x = 304,554.60 × 123,888.69
  4. Step 4: Simplify right side
    220,707x = 37,730,870,427.47
  5. Step 5: Solve for x
    x = 37,730,870,427.47/220,707
  6. Step 6: Final answer
    x = 170,954.57

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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.