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Finding the Fourth Proportional to 402,365.72, 603,641.99 and 118,044.79

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Solution

The fourth proportional to 402,365.72, 603,641.99 and 118,044.79 is: 177,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,365.72 : 603,641.99 = 118,044.79 : x
  2. Step 2: Convert to fraction form
    402,365.72/603,641.99 = 118,044.79/x
  3. Step 3: Cross multiply
    402,365.72x = 603,641.99 × 118,044.79
  4. Step 4: Simplify right side
    402,365.72x = 71,256,790,730.74
  5. Step 5: Solve for x
    x = 71,256,790,730.74/402,365.72
  6. Step 6: Final answer
    x = 177,094.59

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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.