Home / 312,108.62-430,706.82-168,865.52

Finding the Fourth Proportional to 312,108.62, 430,706.82 and 168,865.52

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Solution

The fourth proportional to 312,108.62, 430,706.82 and 168,865.52 is: 233,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,108.62 : 430,706.82 = 168,865.52 : x
  2. Step 2: Convert to fraction form
    312,108.62/430,706.82 = 168,865.52/x
  3. Step 3: Cross multiply
    312,108.62x = 430,706.82 × 168,865.52
  4. Step 4: Simplify right side
    312,108.62x = 72,731,531,126.85
  5. Step 5: Solve for x
    x = 72,731,531,126.85/312,108.62
  6. Step 6: Final answer
    x = 233,032.75

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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.