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Finding the Fourth Proportional to 454,404.42, 681,608.25 and 138,860.01

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Solution

The fourth proportional to 454,404.42, 681,608.25 and 138,860.01 is: 208,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,404.42 : 681,608.25 = 138,860.01 : x
  2. Step 2: Convert to fraction form
    454,404.42/681,608.25 = 138,860.01/x
  3. Step 3: Cross multiply
    454,404.42x = 681,608.25 × 138,860.01
  4. Step 4: Simplify right side
    454,404.42x = 94,648,128,411.08
  5. Step 5: Solve for x
    x = 94,648,128,411.08/454,404.42
  6. Step 6: Final answer
    x = 208,290.51

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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.