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Finding the Fourth Proportional to 266,803.30, 368,174.82 and 145,921.06

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Solution

The fourth proportional to 266,803.30, 368,174.82 and 145,921.06 is: 201,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,803.30 : 368,174.82 = 145,921.06 : x
  2. Step 2: Convert to fraction form
    266,803.30/368,174.82 = 145,921.06/x
  3. Step 3: Cross multiply
    266,803.30x = 368,174.82 × 145,921.06
  4. Step 4: Simplify right side
    266,803.30x = 53,724,459,999.71
  5. Step 5: Solve for x
    x = 53,724,459,999.71/266,803.30
  6. Step 6: Final answer
    x = 201,363.55

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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.