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Finding the Fourth Proportional to 474,660.51, 655,348.62 and 281,130.45

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Solution

The fourth proportional to 474,660.51, 655,348.62 and 281,130.45 is: 388,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,660.51 : 655,348.62 = 281,130.45 : x
  2. Step 2: Convert to fraction form
    474,660.51/655,348.62 = 281,130.45/x
  3. Step 3: Cross multiply
    474,660.51x = 655,348.62 × 281,130.45
  4. Step 4: Simplify right side
    474,660.51x = 184,238,451,044.16
  5. Step 5: Solve for x
    x = 184,238,451,044.16/474,660.51
  6. Step 6: Final answer
    x = 388,147.84

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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.