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Finding the Fourth Proportional to 477,860.36, 716,914.67 and 178,343.21

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Solution

The fourth proportional to 477,860.36, 716,914.67 and 178,343.21 is: 267,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,860.36 : 716,914.67 = 178,343.21 : x
  2. Step 2: Convert to fraction form
    477,860.36/716,914.67 = 178,343.21/x
  3. Step 3: Cross multiply
    477,860.36x = 716,914.67 × 178,343.21
  4. Step 4: Simplify right side
    477,860.36x = 127,856,859,067.60
  5. Step 5: Solve for x
    x = 127,856,859,067.60/477,860.36
  6. Step 6: Final answer
    x = 267,561.14

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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.