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Finding the Fourth Proportional to 384,609.78, 576,897.93 and 118,397.34

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Solution

The fourth proportional to 384,609.78, 576,897.93 and 118,397.34 is: 177,590.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,609.78 : 576,897.93 = 118,397.34 : x
  2. Step 2: Convert to fraction form
    384,609.78/576,897.93 = 118,397.34/x
  3. Step 3: Cross multiply
    384,609.78x = 576,897.93 × 118,397.34
  4. Step 4: Simplify right side
    384,609.78x = 68,303,180,363.51
  5. Step 5: Solve for x
    x = 68,303,180,363.51/384,609.78
  6. Step 6: Final answer
    x = 177,590.86

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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.