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Finding the Fourth Proportional to 357,879.82, 536,805.71 and 121,222.50

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Solution

The fourth proportional to 357,879.82, 536,805.71 and 121,222.50 is: 181,829.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,879.82 : 536,805.71 = 121,222.50 : x
  2. Step 2: Convert to fraction form
    357,879.82/536,805.71 = 121,222.50/x
  3. Step 3: Cross multiply
    357,879.82x = 536,805.71 × 121,222.50
  4. Step 4: Simplify right side
    357,879.82x = 65,072,930,180.48
  5. Step 5: Solve for x
    x = 65,072,930,180.48/357,879.82
  6. Step 6: Final answer
    x = 181,829.00

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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.