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Finding the Fourth Proportional to 486,144.13, 670,879.03 and 268,352.93

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Solution

The fourth proportional to 486,144.13, 670,879.03 and 268,352.93 is: 370,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,144.13 : 670,879.03 = 268,352.93 : x
  2. Step 2: Convert to fraction form
    486,144.13/670,879.03 = 268,352.93/x
  3. Step 3: Cross multiply
    486,144.13x = 670,879.03 × 268,352.93
  4. Step 4: Simplify right side
    486,144.13x = 180,032,353,376.06
  5. Step 5: Solve for x
    x = 180,032,353,376.06/486,144.13
  6. Step 6: Final answer
    x = 370,327.12

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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.