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Finding the Fourth Proportional to 277,920, 383,555.52 and 158,688

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Solution

The fourth proportional to 277,920, 383,555.52 and 158,688 is: 219,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,920 : 383,555.52 = 158,688 : x
  2. Step 2: Convert to fraction form
    277,920/383,555.52 = 158,688/x
  3. Step 3: Cross multiply
    277,920x = 383,555.52 × 158,688
  4. Step 4: Simplify right side
    277,920x = 60,865,658,357.76
  5. Step 5: Solve for x
    x = 60,865,658,357.76/277,920
  6. Step 6: Final answer
    x = 219,004.24

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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.