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Finding the Fourth Proportional to 266,483.51, 367,752.05 and 145,629.89

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Solution

The fourth proportional to 266,483.51, 367,752.05 and 145,629.89 is: 200,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,483.51 : 367,752.05 = 145,629.89 : x
  2. Step 2: Convert to fraction form
    266,483.51/367,752.05 = 145,629.89/x
  3. Step 3: Cross multiply
    266,483.51x = 367,752.05 × 145,629.89
  4. Step 4: Simplify right side
    266,483.51x = 53,555,688,021.86
  5. Step 5: Solve for x
    x = 53,555,688,021.86/266,483.51
  6. Step 6: Final answer
    x = 200,971.87

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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.