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Finding the Fourth Proportional to 301,218.66, 451,534.23 and 143,404.74

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Solution

The fourth proportional to 301,218.66, 451,534.23 and 143,404.74 is: 214,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,218.66 : 451,534.23 = 143,404.74 : x
  2. Step 2: Convert to fraction form
    301,218.66/451,534.23 = 143,404.74/x
  3. Step 3: Cross multiply
    301,218.66x = 451,534.23 × 143,404.74
  4. Step 4: Simplify right side
    301,218.66x = 64,752,148,854.25
  5. Step 5: Solve for x
    x = 64,752,148,854.25/301,218.66
  6. Step 6: Final answer
    x = 214,967.26

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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.