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Finding the Fourth Proportional to 317,291.50, 437,854.26 and 181,316.80

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Solution

The fourth proportional to 317,291.50, 437,854.26 and 181,316.80 is: 250,212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,291.50 : 437,854.26 = 181,316.80 : x
  2. Step 2: Convert to fraction form
    317,291.50/437,854.26 = 181,316.80/x
  3. Step 3: Cross multiply
    317,291.50x = 437,854.26 × 181,316.80
  4. Step 4: Simplify right side
    317,291.50x = 79,390,333,289.57
  5. Step 5: Solve for x
    x = 79,390,333,289.57/317,291.50
  6. Step 6: Final answer
    x = 250,212.61

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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.