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Finding the Fourth Proportional to 272,971.64, 376,708.80 and 158,250.72

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Solution

The fourth proportional to 272,971.64, 376,708.80 and 158,250.72 is: 218,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,971.64 : 376,708.80 = 158,250.72 : x
  2. Step 2: Convert to fraction form
    272,971.64/376,708.80 = 158,250.72/x
  3. Step 3: Cross multiply
    272,971.64x = 376,708.80 × 158,250.72
  4. Step 4: Simplify right side
    272,971.64x = 59,614,438,830.34
  5. Step 5: Solve for x
    x = 59,614,438,830.34/272,971.64
  6. Step 6: Final answer
    x = 218,390.59

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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.