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Finding the Fourth Proportional to 475,498.97, 656,188.73 and 260,640.50

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Solution

The fourth proportional to 475,498.97, 656,188.73 and 260,640.50 is: 359,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,498.97 : 656,188.73 = 260,640.50 : x
  2. Step 2: Convert to fraction form
    475,498.97/656,188.73 = 260,640.50/x
  3. Step 3: Cross multiply
    475,498.97x = 656,188.73 × 260,640.50
  4. Step 4: Simplify right side
    475,498.97x = 171,029,355,074.82
  5. Step 5: Solve for x
    x = 171,029,355,074.82/475,498.97
  6. Step 6: Final answer
    x = 359,683.97

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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.