Home / 220,307.45-304,020.34-124,812.09

Finding the Fourth Proportional to 220,307.45, 304,020.34 and 124,812.09

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Solution

The fourth proportional to 220,307.45, 304,020.34 and 124,812.09 is: 172,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,307.45 : 304,020.34 = 124,812.09 : x
  2. Step 2: Convert to fraction form
    220,307.45/304,020.34 = 124,812.09/x
  3. Step 3: Cross multiply
    220,307.45x = 304,020.34 × 124,812.09
  4. Step 4: Simplify right side
    220,307.45x = 37,945,413,725.88
  5. Step 5: Solve for x
    x = 37,945,413,725.88/220,307.45
  6. Step 6: Final answer
    x = 172,238.45

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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.