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Finding the Fourth Proportional to 163,457.72, 245,186.21 and 43,514.69

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Solution

The fourth proportional to 163,457.72, 245,186.21 and 43,514.69 is: 65,271.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,457.72 : 245,186.21 = 43,514.69 : x
  2. Step 2: Convert to fraction form
    163,457.72/245,186.21 = 43,514.69/x
  3. Step 3: Cross multiply
    163,457.72x = 245,186.21 × 43,514.69
  4. Step 4: Simplify right side
    163,457.72x = 10,669,202,642.18
  5. Step 5: Solve for x
    x = 10,669,202,642.18/163,457.72
  6. Step 6: Final answer
    x = 65,271.94

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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.