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Finding the Fourth Proportional to 163,806.91, 245,682.96 and 45,490.21

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Solution

The fourth proportional to 163,806.91, 245,682.96 and 45,490.21 is: 68,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,806.91 : 245,682.96 = 45,490.21 : x
  2. Step 2: Convert to fraction form
    163,806.91/245,682.96 = 45,490.21/x
  3. Step 3: Cross multiply
    163,806.91x = 245,682.96 × 45,490.21
  4. Step 4: Simplify right side
    163,806.91x = 11,176,169,443.82
  5. Step 5: Solve for x
    x = 11,176,169,443.82/163,806.91
  6. Step 6: Final answer
    x = 68,227.70

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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.