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Finding the Fourth Proportional to 418,321.36, 627,557.37 and 152,455.06

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Solution

The fourth proportional to 418,321.36, 627,557.37 and 152,455.06 is: 228,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,321.36 : 627,557.37 = 152,455.06 : x
  2. Step 2: Convert to fraction form
    418,321.36/627,557.37 = 152,455.06/x
  3. Step 3: Cross multiply
    418,321.36x = 627,557.37 × 152,455.06
  4. Step 4: Simplify right side
    418,321.36x = 95,674,296,496.79
  5. Step 5: Solve for x
    x = 95,674,296,496.79/418,321.36
  6. Step 6: Final answer
    x = 228,710.04

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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.