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Finding the Fourth Proportional to 402,376.39, 603,658.06 and 118,055.45

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Solution

The fourth proportional to 402,376.39, 603,658.06 and 118,055.45 is: 177,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,376.39 : 603,658.06 = 118,055.45 : x
  2. Step 2: Convert to fraction form
    402,376.39/603,658.06 = 118,055.45/x
  3. Step 3: Cross multiply
    402,376.39x = 603,658.06 × 118,055.45
  4. Step 4: Simplify right side
    402,376.39x = 71,265,125,133.43
  5. Step 5: Solve for x
    x = 71,265,125,133.43/402,376.39
  6. Step 6: Final answer
    x = 177,110.60

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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.