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Finding the Fourth Proportional to 266,765.20, 368,130.80 and 145,906.14

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Solution

The fourth proportional to 266,765.20, 368,130.80 and 145,906.14 is: 201,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,765.20 : 368,130.80 = 145,906.14 : x
  2. Step 2: Convert to fraction form
    266,765.20/368,130.80 = 145,906.14/x
  3. Step 3: Cross multiply
    266,765.20x = 368,130.80 × 145,906.14
  4. Step 4: Simplify right side
    266,765.20x = 53,712,544,043.11
  5. Step 5: Solve for x
    x = 53,712,544,043.11/266,765.20
  6. Step 6: Final answer
    x = 201,347.64

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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.