Home / 454,020.80-680,545.20-154,223.60

Finding the Fourth Proportional to 454,020.80, 680,545.20 and 154,223.60

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Solution

The fourth proportional to 454,020.80, 680,545.20 and 154,223.60 is: 231,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,020.80 : 680,545.20 = 154,223.60 : x
  2. Step 2: Convert to fraction form
    454,020.80/680,545.20 = 154,223.60/x
  3. Step 3: Cross multiply
    454,020.80x = 680,545.20 × 154,223.60
  4. Step 4: Simplify right side
    454,020.80x = 104,956,130,706.72
  5. Step 5: Solve for x
    x = 104,956,130,706.72/454,020.80
  6. Step 6: Final answer
    x = 231,170.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.