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Finding the Fourth Proportional to 319,366.26, 479,073.69 and 186,259.77

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Solution

The fourth proportional to 319,366.26, 479,073.69 and 186,259.77 is: 279,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,366.26 : 479,073.69 = 186,259.77 : x
  2. Step 2: Convert to fraction form
    319,366.26/479,073.69 = 186,259.77/x
  3. Step 3: Cross multiply
    319,366.26x = 479,073.69 × 186,259.77
  4. Step 4: Simplify right side
    319,366.26x = 89,232,155,312.45
  5. Step 5: Solve for x
    x = 89,232,155,312.45/319,366.26
  6. Step 6: Final answer
    x = 279,403.83

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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.