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Finding the Fourth Proportional to 313,342.75, 432,413.54 and 179,206.75

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Solution

The fourth proportional to 313,342.75, 432,413.54 and 179,206.75 is: 247,305.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,342.75 : 432,413.54 = 179,206.75 : x
  2. Step 2: Convert to fraction form
    313,342.75/432,413.54 = 179,206.75/x
  3. Step 3: Cross multiply
    313,342.75x = 432,413.54 × 179,206.75
  4. Step 4: Simplify right side
    313,342.75x = 77,491,425,159.40
  5. Step 5: Solve for x
    x = 77,491,425,159.40/313,342.75
  6. Step 6: Final answer
    x = 247,305.63

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1.5x scale

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.