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Finding the Fourth Proportional to 266,860, 368,278.32 and 147,628

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Solution

The fourth proportional to 266,860, 368,278.32 and 147,628 is: 203,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,860 : 368,278.32 = 147,628 : x
  2. Step 2: Convert to fraction form
    266,860/368,278.32 = 147,628/x
  3. Step 3: Cross multiply
    266,860x = 368,278.32 × 147,628
  4. Step 4: Simplify right side
    266,860x = 54,368,191,824.96
  5. Step 5: Solve for x
    x = 54,368,191,824.96/266,860
  6. Step 6: Final answer
    x = 203,733.01

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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.