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Finding the Fourth Proportional to 445,009.82, 613,962.47 and 251,389.23

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Solution

The fourth proportional to 445,009.82, 613,962.47 and 251,389.23 is: 346,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,009.82 : 613,962.47 = 251,389.23 : x
  2. Step 2: Convert to fraction form
    445,009.82/613,962.47 = 251,389.23/x
  3. Step 3: Cross multiply
    445,009.82x = 613,962.47 × 251,389.23
  4. Step 4: Simplify right side
    445,009.82x = 154,343,551,325.25
  5. Step 5: Solve for x
    x = 154,343,551,325.25/445,009.82
  6. Step 6: Final answer
    x = 346,831.79

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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.