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Finding the Fourth Proportional to 163,798.11, 245,698.55 and 45,478.68

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Solution

The fourth proportional to 163,798.11, 245,698.55 and 45,478.68 is: 68,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,798.11 : 245,698.55 = 45,478.68 : x
  2. Step 2: Convert to fraction form
    163,798.11/245,698.55 = 45,478.68/x
  3. Step 3: Cross multiply
    163,798.11x = 245,698.55 × 45,478.68
  4. Step 4: Simplify right side
    163,798.11x = 11,174,045,504.52
  5. Step 5: Solve for x
    x = 11,174,045,504.52/163,798.11
  6. Step 6: Final answer
    x = 68,218.40

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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.