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Finding the Fourth Proportional to 163,603.21, 245,410.31 and 45,264.64

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Solution

The fourth proportional to 163,603.21, 245,410.31 and 45,264.64 is: 67,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,603.21 : 245,410.31 = 45,264.64 : x
  2. Step 2: Convert to fraction form
    163,603.21/245,410.31 = 45,264.64/x
  3. Step 3: Cross multiply
    163,603.21x = 245,410.31 × 45,264.64
  4. Step 4: Simplify right side
    163,603.21x = 11,108,409,334.44
  5. Step 5: Solve for x
    x = 11,108,409,334.44/163,603.21
  6. Step 6: Final answer
    x = 67,898.48

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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.