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Finding the Fourth Proportional to 418,420.23, 627,634.77 and 165,762.24

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Solution

The fourth proportional to 418,420.23, 627,634.77 and 165,762.24 is: 248,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,420.23 : 627,634.77 = 165,762.24 : x
  2. Step 2: Convert to fraction form
    418,420.23/627,634.77 = 165,762.24/x
  3. Step 3: Cross multiply
    418,420.23x = 627,634.77 × 165,762.24
  4. Step 4: Simplify right side
    418,420.23x = 104,038,145,377.09
  5. Step 5: Solve for x
    x = 104,038,145,377.09/418,420.23
  6. Step 6: Final answer
    x = 248,645.11

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1.5x scale

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.