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Finding the Fourth Proportional to 478,161.81, 659,863.29 and 263,301.36

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Solution

The fourth proportional to 478,161.81, 659,863.29 and 263,301.36 is: 363,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,161.81 : 659,863.29 = 263,301.36 : x
  2. Step 2: Convert to fraction form
    478,161.81/659,863.29 = 263,301.36/x
  3. Step 3: Cross multiply
    478,161.81x = 659,863.29 × 263,301.36
  4. Step 4: Simplify right side
    478,161.81x = 173,742,901,671.07
  5. Step 5: Solve for x
    x = 173,742,901,671.07/478,161.81
  6. Step 6: Final answer
    x = 363,355.87

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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.