Home / 220,907.19-304,864.11-130,316.25

Finding the Fourth Proportional to 220,907.19, 304,864.11 and 130,316.25

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Solution

The fourth proportional to 220,907.19, 304,864.11 and 130,316.25 is: 179,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,907.19 : 304,864.11 = 130,316.25 : x
  2. Step 2: Convert to fraction form
    220,907.19/304,864.11 = 130,316.25/x
  3. Step 3: Cross multiply
    220,907.19x = 304,864.11 × 130,316.25
  4. Step 4: Simplify right side
    220,907.19x = 39,728,747,574.79
  5. Step 5: Solve for x
    x = 39,728,747,574.79/220,907.19
  6. Step 6: Final answer
    x = 179,843.61

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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.