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Finding the Fourth Proportional to 486,141.63, 670,875.50 and 268,350.37

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Solution

The fourth proportional to 486,141.63, 670,875.50 and 268,350.37 is: 370,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,141.63 : 670,875.50 = 268,350.37 : x
  2. Step 2: Convert to fraction form
    486,141.63/670,875.50 = 268,350.37/x
  3. Step 3: Cross multiply
    486,141.63x = 670,875.50 × 268,350.37
  4. Step 4: Simplify right side
    486,141.63x = 180,029,688,648.94
  5. Step 5: Solve for x
    x = 180,029,688,648.94/486,141.63
  6. Step 6: Final answer
    x = 370,323.54

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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.