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Finding the Fourth Proportional to 454,634.50, 627,395.65 and 253,430.50

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Solution

The fourth proportional to 454,634.50, 627,395.65 and 253,430.50 is: 349,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,634.50 : 627,395.65 = 253,430.50 : x
  2. Step 2: Convert to fraction form
    454,634.50/627,395.65 = 253,430.50/x
  3. Step 3: Cross multiply
    454,634.50x = 627,395.65 × 253,430.50
  4. Step 4: Simplify right side
    454,634.50x = 159,001,193,277.33
  5. Step 5: Solve for x
    x = 159,001,193,277.33/454,634.50
  6. Step 6: Final answer
    x = 349,734.11

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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.