Home / 281,864.32-389,096.80-197,313.28

Finding the Fourth Proportional to 281,864.32, 389,096.80 and 197,313.28

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Solution

The fourth proportional to 281,864.32, 389,096.80 and 197,313.28 is: 272,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,864.32 : 389,096.80 = 197,313.28 : x
  2. Step 2: Convert to fraction form
    281,864.32/389,096.80 = 197,313.28/x
  3. Step 3: Cross multiply
    281,864.32x = 389,096.80 × 197,313.28
  4. Step 4: Simplify right side
    281,864.32x = 76,773,965,845.50
  5. Step 5: Solve for x
    x = 76,773,965,845.50/281,864.32
  6. Step 6: Final answer
    x = 272,379.16

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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.