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Finding the Fourth Proportional to 402,364.98, 603,640.86 and 118,044

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Solution

The fourth proportional to 402,364.98, 603,640.86 and 118,044 is: 177,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,364.98 : 603,640.86 = 118,044 : x
  2. Step 2: Convert to fraction form
    402,364.98/603,640.86 = 118,044/x
  3. Step 3: Cross multiply
    402,364.98x = 603,640.86 × 118,044
  4. Step 4: Simplify right side
    402,364.98x = 71,256,181,677.84
  5. Step 5: Solve for x
    x = 71,256,181,677.84/402,364.98
  6. Step 6: Final answer
    x = 177,093.40

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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.